Data Management

Data management is the process of collecting, cleaning and managing data while adhering to regulatory standards and practices. Our data managers are involved in all stages of the research process, with a focus on assuring overall accuracy, integrity and quality of the data.

Maria Agda

Data Clerk

Ms. Maria Agda holds a Bachelor of Science degree in Commerce. She joined the CIHR Canadian HIV Trials Network at CHÉOS as a Data Clerk in 1993. Maria maintains databases and creates and maintains filing systems for confidential documents according to established procedures.

Prior to joining CTN/CHEOS, Maria worked for CIBC & Chevron main office.

Jina Faour

Data Manager

Prior to moving to Canada, Jina worked at the International Commission for missing persons (ICMP), where she was responsible for the data analysis for the MENA program. She has more than 10 years of experience as a statistical analyst in both for-profit/non-profit sectors. She carries an MBA in business analytics from University Canada West.

Erica Jaaf

Data Management Operations Lead

BA (Hons), Certified Clinical Data Manager

A university-educated and industry-certified clinical data management professional with 17 years’ experience, Erica is the Data Management Operations Lead at CHÉOS/CTN. She is responsible for the organization and execution of CHÉOS/CTN data processes and strategies, including all data capture, storage, and retrieval processes. In addition to comprehensive data management activities for specific trials, from study start-up to database lock, Erica provides team oversight for the data management team and support staff, scope forecasting and projections, and cross-functional collaboration on work processes and standard operating procedure development.

Elisa Lau

Senior Data Manager

Elisa joined CHÉOS in January 2021. She has previously worked at the BC Children’s Hospital Research Institute (BCCHR) and the International Collaboration on Repair Discoveries (ICORD). Elisa holds a Bachelor of Science in genomics from UBC.

Julia Zhu

Senior Data Manager

Julia joined CHÉOS and the CTN in February 2022 as a Senior Data Manager. She worked at BC-CfE as a Data Analyst for nine years, where she performed data analyses for research projects and study cohorts. She has a Master’s degree in Electrical Engineering and a Bachelor’s degree in Health Information and Computer Science. She plans to successfully apply her strong analytical skills in SAS software and SQL language to this position.

Project Management

Our project managers are experts in the regulatory, policy, budgeting, and implementation requirements for clinical research studies. Project managers are integral to the success of any research project, acting as a bridge between different members of the research team and other service providers.

Judy Chiu

Project Manager


Ms. Judy Chiu is a Project Manager working with Drs. Nick Bansback and Wei Zhang.

Allison Coleman

Project Manager

Allison joined CHÉOS and the CTN in February 2021 as a Project Manager. She has 11 years of clinical research coordination experience from the Department of Neurology, and the Centre for Molecular Medicine and Therapeutics, Faculty of Medicine at the University of British Columbia. Recently, she spent 4 years as a Clinical Project Manager at the Blusson Spinal Cord Centre in the area of spinal cord injury research. Allison holds a Bachelor of Science in Physics from the University of British Columbia and is a Certified Clinical Research Professional with the Society of Clinical Research Associates (SOCRA).

Jessie Dhillon

Project Manager

Jennifer Hawkins

Senior Project Manager

Jennifer Hawkins joined CHÉOS in July 2021 as a Community Research Assistant, providing support on the Fraser East Overdose Response (FEOR) project, and is currently Senior Project Manager, Community-Based Research. She has collaborated with Dr. Amy Salmon’s team since 2018, leveraging her position as a Community Health Specialist with Fraser Health to activate stakeholders around novel and relevant approaches towards addressing overdose in Chilliwack. Jennifer’s community development work is deeply rooted in her seminary training at Fuller Theological Seminary in Pasadena, California, where she earned her Master of Arts.

Jayamarx Jayaraman

Project Manager


Mr. Jayaraman is an experienced clinical research professional who is involved in project management, site management, site coordination, and monitoring for CHÉOS/CTN studies.

Salima Jutha

Project Manager


Salima Jutha is a clinical trial specialist with over 14 years of experience in coordinating and managing clinical trials. She obtained her B.Sc. in Biology from SFU and has taken specialty courses in clinical research at the British Columbia Institute of Technology. Her expertise is in ensuring GCP compliance at the site and sponsor level, Health Canada regulatory submissions, and safety and project management.

Recent projects include the North American Opiate Medication Initiative (NAOMI) study, for which she had a dual role as both trial coordinator and clinical project manager. She currently is the Clinical Trial Manager for the Study to Assess Long-Term Opioid Maintenance Effectiveness (SALOME) and also coordinates other CHÉOS-delegated studies.

Eisha Lehal

Project Manager

Eisha joined CHÉOS in February 2022 as a Project Manager for the Program of Outcomes Research on Treatment with Injectables for Addiction (PORTIA) study. She previously worked for CHÉOS in the Data Management team back in 2017. With a Bachelor’s degree in Health Sciences and previous working experience in substance use research, Eisha hopes to bring a meaningful perspective to this study.

Leslie Love

Senior Project Manager


Ms. Love joined CHÉOS and the CIHR Canadian HIV Trials Network (CTN) in October 2016. She is a certified clinical research professional with over 20 years’ experience in a variety of research settings, including at the site level, with sponsor-investigators, and at contract research organizations. Her primary role is to provide project management support to CHÉOS and CTN-supported investigators, as well as develop research training materials and programs.

Judy Needham

Senior Project Manager


Judy Needham joined CHÉOS and the CIHR Canadian HIV Trials Network (CTN) as a Project Manager in 2017. She has more than 9 years’ experience providing leadership and oversight in the management and coordination of investigator-initiated and industry-funded clinical research studies and is an experienced research program administrator. She holds a Ph.D. in Natural Products Chemistry from the UBC and a Certificate in Clinical Research from the British Columbia Institute of Technology. She is the current Advisory Committee Chair of the Clinical Research Professionals of British Columbia (CRPBC).

Shoshana Parker

Project Manager


Ms. Shoshana Parker is a Project Manager with CHEOS, currently managing studies reviewing the safety and efficacy of new asthma medications. She has been part of CHEOS as a research professional for 20 years and has worked on several different projects. Shoshana received certification from The Society of Clinical Research Associates and she also holds a Bachelor in Medical Laboratory Science from UBC and a diploma in Medical Laboratory Technology from the Michener Institute in Toronto (formerly the Toronto Institute of Medical Technology).

Leeanne Parris

Project Manager

Leeanne joined CHÉOS and the CTN in March 2022 as a Project Manager. She studied at the University of Brighton, UK to become a Registered Psychiatric Nurse. Over the past 5 years, Leeanne has worked as a Senior Clinical Research Coordinator at the Pacific Lung Research Centre.

Alex Tam

Research Project Manager

Alex joined CHÉOS as a Research Project Manager in 2022 for the Health Economics and Decision Sciences teams. Prior to joining CHÉOS, he worked as a senior analyst in industry consulting and market access research in the US. Alex obtained his Master of Science in Population and Public Health with a concentration in Health Economics from UBC in 2022, where he also completed his bachelor’s in Psychology and Economics.

Laura Zunino

Project Manager


Ms. Laura Zunino joined CHÉOS and the CIHR Canadian HIV Trials Network (CTN) as a Project Manager in 2019. She has extensive experience working with patients and health care professionals and specializes in the end-to-end management and monitoring of investigator-initiated and industry-sponsored clinical research.  Prior to joining CHÉOS and the CTN, Laura worked for the Hospital for Sick Children (SickKids) and Mount Sinai Hospital in Toronto, Ontario in the areas of Haematology/Oncology and Infectious Disease research. She holds a Bachelor of Science in Pharmacology from McGill University, a certificate in Project Management from the University of Toronto and is certified as both a Clinical Research Professional by The Society of Clinical Research Associates (SOCRA) and a Project Management Professional by the Project Management Institute (PMI).


Our operations team is responsible for the daily functioning of the Centre and for planning and implementing organizational improvements. This department includes finance, programs, administration, human resources, and computer systems.

Shohreh Broumend

Finance & Payroll Administrator

Joey Castro

Systems Administrator

Joey has a bachelor’s degree in Electonics and Communication Engineering. He worked for IBM/GBM  as Network Specialist in the Middle East for 8 years prior to joining CHÉOS in 2008. At CHÉOS, he is responsible in System Administration of VMware and Network infrastructure, manages our Microsoft 365, Exchange and other Windows and Linux servers.

Duane Cheng

IT Support Specialist

Duane joined CHÉOS and the CTN in March 2022 as an IT Support Specialist. With an interest in IT Automation and Administration, he will be helping to provide support and timely assistance with all IT-related issues to CHÉOS and CTN staff.

Jaydee Cossar

Community Engagement Coordinator

Jaydee has been a contributor in the non-profit sector with experience in program administration, community-based research management, mental health, and HIV advocacy. Jaydee is passionate about increasing the capacity of community members to meaningfully participate in research and evaluation.

Jon Ehrich

Committees Manager

Jon joined CHÉOS and the CTN in September 2022 as a Committees Manager. Jon has a Bachelor’s in Linguistics and a Master’s in Corporate Communication. He has previously worked for the Fraunhofer Society, Europe’s largest organization for applied research, in his home country of Germany.

Shabnam Farasat

Senior Finance Manager


Ms. Shabnam Farasat joined CHEOS and CTN in 2007 and she leads all financial aspects of the centre. She holds a bachelor degree and is a certificated Payroll Compliance Practitioner

Shazia Kazani

Human Resources Coordinator

Khushpreet Khattra

Finance Assistant

Khushpreet joined CHÉOS in February 2022 as a Finance Assistant. She holds an Associate Degree in Business Administration from Columbia College, Vancouver, BC. She comes with experience as a Finance Coordinator from Black Tusk Research Group.

Joanne Lau

Finance Coordinator

Jennifer Leong

Program Operations Coordinator

Jennifer joined CHÉOS and the CTN in March 2021 as a Program Operations Coordinator. She previously worked at the Heart & Stroke Foundation of Canada as the Research and Health Promotion Coordinator, where she helped to manage the research portfolio and delivered various health initiatives, including the BC Public Access to Defibrillation (PAD) Program. Jennifer holds a Bachelor of Science in Food, Nutrition and Health from the University of British Columbia.

Janice Lo

Finance Coordinator

Janice is a Finance Coordinator at CHÉOS/CTN and maintains the financial reporting for Drs. Eugenia Oviedo-Joekes and Peter Dodek. Her day-to-day tasks include, but not limited to, invoice processing, deposits, purchase orders, and assisting other accounting staff. She has been with CHEOS/CTN since 2008 and holds a diploma in Financial Management at BCIT/Capilano University.

Julie Pongrac

Trainee Program and Development Coordinator

Julie joined CHÉOS and the CTN in March 2022 as a Trainee Program & Development Coordinator. With a BSc and PhD from the University of Western Ontario and an MSc from the University of Guelph, Julie will be developing new opportunities for trainees at CHÉOS and CTN.

Harneet Samra

Operations Assistant

Harneet joined CHÉOS/CTN as an Operations Assistant in February 2023, with two years of prior experience providing administrative support in a healthcare setting. She mainly works on facilities and office improvement projects, as well as internal event planning. She has previously worked in non-profits and public policy, and holds a BA in Economics from UBC. In her personal time, Harneet enjoys reading and spending time in nature.

Nicole Shum

Financial Analyst & Executive Administrative Coordinator


Ms. Nicole Shum joined CHÉOS and the CIHR Canadian HIV Trials Network (CTN) in May 2017 as the Executive Assistant to Dr. Aslam Anis. She provides overall coordination support for administrative, financial, and research activities, such as grant applications, finance tracking, and editorial duties. Ms. Shum also volunteers at the Student Biotechnology Network as Director of Finance. She holds a Bachelor of Science degree in Biochemistry from the University of British Columbia.

Nora Skuridina

Executive Assistant

Nora joined CHÉOS and the CTN in March 2023 as Executive Assistant. She holds a Bachelor of Science in Biology from UBC, and was involved in several research initiatives during her academic career. In addition, Nora has extensive healthcare-related work and volunteer experience. In her personal time, Nora enjoys baking, gardening, and staying active.

Michael Smith

Community Engagement Coordinator

Michael Smith joined CHÉOS and the CIHR Canadian HIV Trials Network in April 2021 as Community Engagement Coordinator. Michael has 20 years of work, volunteer, and lived experience within the HIV community, and aided with the initial coordination of the BC People Living with HIV Stigma Index Project through the Pacific AIDS Network.

Kristin Westland

Director of Operations

Ms. Kristin Westland joined CHÉOS in 2010 as Director of Operations after working as the Programme Manager for the Collaboration for Outcomes Research and Evaluation in the Faculty of Pharmaceutical Sciences at the University of British Columbia. She is also the Chief Administrative Officer for the CIHR Canadian HIV Trials Network and has previously served as the Director of Operations for the provincial B.C. Centre for Improved Cardiovascular Health.

Gina Willis

Senior Operations Manager

Ms. Gina Willis joined CHÉOS and the CTN in 2014. Involved in a range of centre operations, she manages the administration of financial, human resources, facility, communications, and operations functions, including CHÉOS’ research support and grant facilitation services. Ms. Willis previously worked for the B.C. Centre for Excellence in HIV/AIDS. She holds a bachelor’s degree in Psychology from Simon Fraser University and has a certificate in Project Management.

Rana Young

Human Resources Manager


Rana Young joined CHÉOS and the CIHR Canadian HIV Trials Network in 2015 and supports the centre of 130+ staff and research personnel as Human Resources Manager. With a focus on organizational behaviour, Rana brings a wealth of experience from a variety of professional settings including health care, academic, and government agency sectors. She holds a bachelor’s degree in Social Sciences and Literature from the University of British Columbia.

Yee Zhang

Systems Administrator

Regulatory Affairs

Our regulatory and quality affairs department manages the infrastructure and guidelines for creating, maintaining, and enhancing administrative, regulatory, and quality assurance systems associated with conducting clinical trials and other research projects.

Dana Nohynek

Director of Regulatory Affairs & Quality Assurance

Ms. Nohynek has the overall responsibility of developing, facilitating and executing regulatory strategies to support Network studies and to oversee the maintenance and compliance of quality systems.

She holds a B.Sc. (honours) from the University of Waterloo (1998), a M.Sc. from the University of Toronto (2000), and a RAC certification (2006) granted by the Regulatory Affairs Professionals Society (RAPS). She has more than ten years of industry experience that includes the development of regulatory strategies throughout various phases of clinical investigation, extensive interactions with regulatory authorities, and preparation and submission of applications to health agencies in Canada, the United States, and Europe. In addition, she has implemented and maintained quality systems, prepared for and participated in agency audits, and developed internal training programs.

Ms. Nohynek has worked for small to mid-size biotech and medical device companies as well as with large pharma. She is an executive member of RAPS’ Southern B.C. chapter and a professional member of the Canadian Association of Professionals in Regulatory Affairs.

Research Staff

Our research staff form the backbone of many of our research programs, assisting Scientists in developing research plans and protocols, conducting studies, and publishing results. This group includes research assistants, projects coordinators, evaluation specialists, and methodologists.

Alison Adams

Research Analyst

Alison is a Research Analyst for the Program of Outcomes Research on Treatment with Injectables for Addiction (PORTIA) study. She holds Master of Public Health and Master of Library and Information Studies degrees from the University of British Columbia. She has previous research experience at the BC Centre for Disease Control and the BC Coroners Service.

Jenyo Banjo

Program Coordinator

Jenyo is a Program Coordinator working with Dr Amy Salmon and Dr Beth Snow. Jenyo has a Master of Public Health degree from Simon Fraser University and has years of experience with program evaluation, data analysis and project management.

Scott Beaumont

Research Assistant

Scott Beaumont is a Research Assistant working with Dr. Eugenia Oviedo-Joekes.

Mary Berger

Research Assistant

Mary Berger works on a blood plasma study with Dr. Nick Bansback and Adam Easterbrook. She is helping with the qualitative phase of the study.

Sarin Blawatt

Graduate Research Assistant

Sarin Blawatt joined CHÉOS in December 2021 as a Research Coordinator for Dr. Eugenia Oviedo-Joekes and will be working on the Program of Outcomes Research on Treatment with Injectables for Addiction (PORTIA) study. Sarin comes to the team with over a decade of experience working in low-barrier, harm reduction service provision for people who use substances and has a background in social justice, gender studies, and critical theory. Currently, Sarin is a PhD Student with UBC’s School of Populations and Public Health.

Brittany Buffone

Research Assistant

Brittany Buffone joined CHÉOS in 2020 as a research assistant (pharmacy) working with Dr. Wei Zhang. She previously completed a Bachelor of Science in Pharmacology at McGill University and an Entry-to-Practice Doctor of Pharmacy degree at the University of British Columbia. Next, she will be pursuing a hospital residency with Lower Mainland Pharmacy Services.

José Carvajal

Research Assistant

José Carvajal joined CHÉOS in June 2021 as a research assistant for Dr. Eugenia Oviedo-Joekes in the Program of Outcomes Research on Treatment with Injectables for Addiction (PORTIA) study. José holds a Bachelor of Arts degree in International Relations and Human Geography from the University of British Columbia and is currently working towards a Master of Arts degree in Geography at the University of British Columbia, focusing on environmental politics in the Arctic region.

Cindy Choi

Research Assistant

Cindy joined CHÉOS in October 2021 as a Research Assistant for Dr. Joseph Puyat’s team. Currently, Cindy is working toward a Master of Science in UBC’s School of Population and Public Health. Her research interest lies in investigating facilitators and barriers to accessing mental health services and identifying health disparities in young adults.

Sameer Desai

Research Methodologist

Mr. Sameer Desai is a Research Methodologist at CHÉOS. He works closely with Dr. Joseph Puyat and CHÉOS statisticians to provide methodological and statistical support to hospital researchers. He has a M.Sc. in the field of Population Health and currently a Ph.D. candidate at the School of Population and Public Health, University of British Columbia.

Sophia Dobischok

Research Assistant

Sophia is a Research Assistant for the Program of Outcomes Research on Treatment with Injectables for Addiction (PORTIA) study. She will soon graduate with a BSc in Behavioural Neuroscience and a BA in English Literature from Simon Fraser University.

Adam Easterbrook

Research Methodologist

Mr. Adam Easterbrook is a Research Methodologist at CHÉOS. He previously worked at the University of Alberta as a Research Associate. Adam’s research has focused on exploring the experiences of various marginalized/vulnerable groups, which has included engaging in several knowledge translation endeavours. Adam will be working with Dr. Eugenia Oviedo-Joekes’ team on the PORTIA study.

Avarna Fernandes

Research Assistant

Avarna Fernandes is a Research Assistant with Dr. Josie Geller.

Saranee Fernando

Qualitative Methodologist

Saranee Fernando (MPH) is a Qualitative Methodologist for the Evaluation Team at CHÉOS. Saranee has a Master of Public Health degree, with a specialization in Health Promotion. Her experience conducting community-based research spans over eight years, with projects ranging from the overdose response in BC, to health service utility of people living with HIV. Currently, she is also involved in qualitative research and evaluation in the areas of youth mental health, chronic illness, and health technology assessment.

Rochelle Gamage

Research Assistant

Rochelle joined CHÉOS in May of 2023 as a Research Assistant for Dr. Amy Salmon’s team. She holds a Master of Science degree in Global Mental Health from King’s College London, and a Bachelor of Science degree in Behavioral Neuroscience from SFU.  Her research interest lies in discerning access and treatment in the field of substance use and addiction.

Adrian Genge

Research Assistant

Adrian joined CHÉOS in March 2022 as a Research Assistant for the Program of Outcomes Research on Treatment with Injectables for Addiction (PORTIA) study. Adrian previously worked at the BCCDC as an Administrative Assistant. He has a BSc in Health Sciences from SFU and is currently working towards a certificate in Technical Writing at BCIT.

Carolina Guerra Alejos


Carolina joined CHÉOS in May 2023 as an Epidemiologist working in substance use and HIV research with Dr. Bohdan Nosyk. She holds a Master of Public Health degree from Simon Fraser University and a Medical Degree from Universidad Anáhuac Querétaro, in Mexico. Her research interests range from health systems transformation, health economics, and sustainable healthcare to primary care and mental health.

Ihoghosa (Muyi) Iyamu

Project Coordinator

Ihoghosa (Muyi) Iyamu is working as a Project Coordinator with Dr. Amy Salmon. He is a public health physician with a Master’s Degree in International Cooperation and Humanitarian Aid from the Humanitarian Aid Studies Center Almeria, Spain. He has over 6 years of experience in public health spanning across health insurance, mHealth, NCD control and HIV/AIDS programming. Most recently, he served as the documentation lead on the FHI 360 led Strengthening Integrated Delivery of HIV/AIDS Services (SIDHAS) project, across 13 states in Nigeria.

Nisha Jain

Research Coordinator

Nisha Jain joined CHÉOS in August 2022 as a Research Coordinator to provide support on the “hs-cTn – Optimizing the Diagnosis of Acute Myocardial Infarction/Injury in Women” (CODE-MI) study. Nisha joins the team with over eight years of diverse experience working in projects ranging from digitalization of health care in rural areas to clinical trials with a focus on women’s and children’s health.

She has a background in clinical research, public health, and data management. She holds a professional diploma in clinical research, post-graduation in Analytics for Business Decision-Making and has taken specialty courses in Health Informatics at George Brown college, Toronto. Nisha also has an MBA in Healthcare Services Management, which she received in India.

Soodabeh Joolaee

Research Coordinator

Ph.D, RN, MSc

Soodabeh (Soodi) is a Research Coordinator for Dr. Peter Dodek, working with him on his “Moving from Moral Distress to Moral Integrity” project. Soodi completed a postdoctoral fellowship at the Centre for Applied Ethics, SPPH in 2016, and is now a visiting professor at the same center. In addition to her role at CHÉOS and as a visiting professor, Soodi is a currently a professor at the Nursing Care Research Center (NCRC), Iran University of Medical Sciences.

Danette Jubinville

Research Coordinator

Danette joined CHÉOS in September 2021 as a Research Coordinator with Dr. Sarah Munro’s team and as Co-Principal Investigator for Improving Access to Family Planning Services for Indigenous Peoples through Storytelling: the STORY Project. She is currently a PhD Candidate at the SFU Faculty of Health Sciences and the Director of Research and Education for the Ekw’í7tl Indigenous Doula Collective.

Danette’s work aims to improve the quality and accessibility of reproductive health care services for Indigenous people in the city, a project near to her heart as an urban mixed-blood woman and mother with Cree, Saulteaux, French, Jewish, German, Scottish, and English ancestry.


Zeba Khan

Research Coordinator

Zeba joined CHÉOS in October 2021 as a Research Coordinator for Dr. Sarah Munro to support the ‘Improving access to family planning services for Indigenous peoples through storytelling: The STORY Project’. She grew up in Bangladesh and immigrated to Canada in 2015 as an international student. She will continue to work with Dr. Sarah Munro on her Master’s project investigating the barriers faced by immigrant youth in accessing sexual health care.

Ernest Lai

Research Assistant

Ernest Lai joined CHÉOS in September 2019 as a Research Assistant for the project Value and Limitations in Hospitalizations and Expenditure (VALHUE). The specific focus of the study is patient quality improvement and the impact of wait times on a patient’s day to day life, through collecting and analyzing patient-reported outcome measures (PROMs) before and after elective surgery.

Ernest also divides his time as a Project Coordinator at Footbridge Centre for Integrated Orthopedic Care, analyzing data and working with orthopedic surgeons on how to better improve clinic operations and physician practice. He holds a Bachelor of Science degree in Statistics and is a current candidate for the Master of Science degree in Population and Public Health, both at the University of British Columbia.

Jacob Lee

Research Assistant

Jacob is a Research Assistant for the Program of Outcomes Research on Treatment with Injectables for Addiction (PORTIA) study. He is a recent graduate from Simon Fraser University where he majored in Health Sciences and Philosophy. He has provided support to various research teams and holds a particular interest in improving healthcare delivery.

Kurt Lock

Research Coordinator

Kurt Lock joined CHÉOS in 2005 as a Research Assistant for the North American Opioid Medication Initiative (NAOMI) clinical trial and then was employed as a coordinator for the Study to Assess Long-Term Opioid Maintenance Effectiveness (SALOME) in 2011.  Kurt continues to assist in research projects at CHEOS while working on his Masters degree in Public Policy at SFU.

Lizzy Matzinger

Project Manager

Lizzy is a Project Manager working with Dr. Eugenia Oviedo-Joekes on the Program of Outcomes Research on Treatment with Injectables for Addiction (PORTIA) study. She completed her Master of Public Health at Queen’s University with a focus on mental health, substance use, and stigma.

Rebecca Metcalfe

Research Methodologist

Bimbola Olure

Graduate Research Assistant

Bimbola joined CHÉOS in September 2021 as a Graduate Research Assistant with Dr. Sarah Munro’s team. She is currently a Master’s student in Reproductive and Developmental Sciences at UBC.

Bimbola earned her medical degree from the University of Szeged, Hungary before moving to Vancouver, B.C.


Derek Ouyang


Mr. Derek Ouyang is a Statistician at CHÉOS.

Micah Piske


Micah Piske is an Epidemiologist working with Dr. Bohdan Nosyk. She holds an MSc in Public Health from the London School of Hygiene and Tropical Medicine and a BSc from the University of British Columbia. Her research has recently focused on the cascade of care for opioid use disorder, as well as maternal and neonatal health in the context of substance use and HIV.

Google Scholar citations

Jenna Pullen

Research Services Manager


Ms. Jenna Pullen joined the Centre in 2019 to help support committees and process effectiveness at both CHÉOS and the CIHR Canadian HIV Trials Network (CTN). With a background in relationship management within post-secondary institutions and industry in Saskatchewan, Ms. Pullen also brings front-line social work experience in crisis intervention, mental health and a variety of justice roles. Ms. Pullen received a Bachelor of Social Work from the University of Regina as well as a Master’s of Business Administration from Edwards School of Business.

Kyle Turner

Research Assistant

Kyle joined CHÉOS in March 2022 as a Research Assistant for the Program of Outcomes Research on Treatment with Injectables for Addiction (PORTIA) study. He previously worked at Providence Crosstown Clinic and hopes to build connections in the community. Kyle holds a BSc in Psychology from the University of Victoria.

Aleyah Williams

Research Manager

Aleyah is a Research Manager working with Dr. Sarah Munro on the ‘Improving access to family planning services for Indigenous peoples through storytelling: The STORY Project’ and the ‘Storytelling about Options and Reproductive access for Youth (The STORY Project): A Pan-Canadian Integrated Knowledge Translation Study to Improve Contraception Health Services’. She is passionate about community-driven research and policy change that supports equitable health systems.

Bianca Yeung

Project Coordinator

Bianca Yeung works with Dr. Bohdan Nosyk’s Health Economics Research Unit (HERU). She supports the team’s evaluations in HIV/AIDS prevention, opioid use disorder treatment, and risk mitigation. Bianca holds a BSc in Integrated Sciences from UBC.

Maggie Yu

Research Assistant

Maggie joined CHÉOS in August 2022, as a Research Assistant for Dr. Nick Bansback. She previously worked in the Provincial Health Services Authority (PHSA) as a Statistician, supporting cardiac program evaluations and health services research. Maggie is keen to study strategies to examine economic value in health care and incorporate patients’ priorities and preferences in care decisions. She will be working towards her Master’s at the School of Population and Public Health, UBC in September 2022.

Joanna Zelichowska

Research Assistant

Ms. Joanna Zelichowska is a Research Assistant for the Eating Disorders Program at Providence Health Care with CHÉOS Scientist Dr. Josie Geller.

Software and Programming

Our programmers and developers are responsible for the design, implementation, and management of information technology solutions in areas of clinical research and health care delivery. This includes clinical systems design, systems architecture, software development, interface development, and health data exchanges.

Levon Ambartsoumian

Senior Application Developer/Analyst

Mr. Levon Ambartsoumian obtained a Masters in Mathematics from the Lomonosov Moscow State University and has a strong background in database management and IT systems’ design and development. At CHÉOS and the CIHR Canadian HIV Trials Network (CTN), he is responsible for database and application servers’ deployment and administration. He also designs and supports IT applications for clinical and research programs.

Stanko Kovacevic

Data Programmer

Stanko has been a relational database developer and software developer with the CIHR Canadian HIV Trials Network at CHÉOS. since 1997. He is specialized in designing, developing, testing, implementing, and maintaining new and existing databases, and creating management methods and systems to efficiently access information stored in databases. Stanko has developed GUI client/server and WEB data management, data manipulation, and data reporting applications using various programming languages and development tools.

Stanko has a master’s degree in Quantitative Economic Analysis from Sarajevo University, Bosnia and Herzegovina.

Mirek Piaseczny

Chief Information Officer

Dr. Piaseczny joined CHÉOS and the CTN in 1992. He has a master’s degree in Applied Mathematics from the University of Lodz (Poland–1978), and a Ph.D. in Natural Sciences, Health Informatics from the Medical Academy of Lodz (1984).

His work experience includes the B.C. Provincial Renal Agency, Circle Drugs, Ltd., and the Nofer Institute of Occupational Medicine. His professional interests include clinical trials, electronic health records, health registries, and administrative databases.

Victor Trot

Senior Application Developer/Analyst

Victor joined CHÉOS and the CIHR Canadian HIV Trials Network (CTN) in 2012 as a database programmer and has a bachelor’s degree in computer science. He also works with the B.C Renal Agency (BCPRA) as an application developer.

Qi Xia

Application Developer/Administrator

Master of Science (M.Sc.) in Physics, Oracle Certified DBA

Qi undertook a postgraduate course in Physics and also obtained a Computer Science diploma/certificate at University of Regina, Canada.

Qi previously worked on systems regarding pension, life insurance, and group insurance for Canada Life Assurance. Qi also worked at Power company and Sask Health, contributing to enterprise integration, application and database support, and was involved in planning, implementing, and testing variant systems.

Qi joined CHÉOS/CTN in 2018. Major responsibilities include planning/installing/configuring/supporting many databases and Oracle Health Science suite including InForm, Central Designer, Central Coding, as well as Cognos Analysis – the systems for the Data Management Team to design, create, and operate many online clinical trial applications for different organizations and companies. Qi has a strong interest in Database Administration.

Statistics and Health Economics

Our statisticians and health economists provide consultation and analysis services to researchers in a wide range of areas. They are involved in all stages of research, including designing analysis plans, developing and validating statistical tools, modelling and assessing cost-effectiveness, and leading analysis and publication.

Sandra Blitz

Senior Statistician

Sandra joined CHÉOS and the CTN in September 2022 as a Senior Statistician, having previously worked with the CHÉOS and the CTN team from 1995–1999. In between, she’s worked with a breast cancer research group and an emergency medicine research group in Edmonton, the HIV research group at the Toronto General Hospital, and most recently for a translational science team at a Biotech company in Toronto. She holds a BSc in Math from UBC and MSc in Statistics from SFU.

Benjamin Enns

Health Economist

Meijiao Guan


Dr. Guan holds a PhD in Mathematics and a Master degree in Statistics, both from the University of British Columbia.

Prior to joining CHÉOS, Dr. Guan worked as a biostatistician at the Centre for Improved Cardiovascular Health (ICVHealth) with over 6 years of experience in the cardiovascular research setting. Her projects focused on evaluating factors associated short and long-term outcomes following various cardiac procedure in BC. She specializes in methodologies including mixed effects models for longitudinal data, survival analysis, meta-analysis and Bayesian random-effects meta-analysis. She is currently working the project which aims to identify care gaps for out-of-hospital cardiac arrest in BC using Canadian Resuscitation Outcomes Consortium and administrative databases.

Daphne Guh

Senior Statistician

Pharmacoeconomics Program

Research Interests

  • Biostatistics
  • Analysis of administrative databases
  • Modeling/costing of health care utilizations
  • Cost-effectiveness studies

Ms. Daphne Guh joined the Pharmacoeconomics program at CHÉOS after graduating with a Master of Science in Statistics from the University of British Columbia in late 1997. Over the years, she has worked with Centre Director Dr. Aslam Anis on several projects related to the provincial drug plan regulatory policies. Her research interests have been in biostatistics and issues/methods in analyzing administrative databases. Current research projects she is working on include the North American Opiate Medication Initiative (NAOMI) clinical trial, a British Columbia population-based rheumatoid arthritis database, and a project on the cost of obesity–burden of illness.

Travis Hee Wai

Senior Statistician

Travis received his PhD in Biostatistics from the University of Washington. His previous research experience primarily focused on prognostic models and inference from observational data, using electronic health records in pulmonary medicine applications.

Fahmida Homayra


Megan Kurz


Megan received an MSc in statistics from SFU in 2020, with a thesis focused on survival analysis applied to retention in opioid agonist treatment.  She works as a statistician under Dr. Bohdan Nosyk, leading and supporting statistical analyses for his research projects.

May Lee

Senior Statistician

May holds a Master of Science in Statistics from Simon Fraser University and has over 10 years of experience providing support to clinicians and epidemiologists on clinical outcomes research in cardiovascular disease, and has been working with Karin Humphries for 15 years, including being part of the beginning of the BC Center for Improved Cardiovascular Health (ICVHealth) in 2013. Her expertise lies in working with administrative databases, carrying out complex linkages, and analyses.

Terry Lee

Senior Statistician

PhD, M.Sc.

Dr. Terry Lee is a Statistician for the CIHR Canadian HIV Trials Network at CHÉOS. He received his PhD in Statistics from the University of Victoria and completed his postdoctoral research fellowship at Simon Fraser University in 2009. Part of his research involved collaborating with the Public Health Agency of Canada to develop and validate statistical tools for estimating hospital morbidity rate and cancer mortality rate in Canada. Dr. Lee’s work includes providing statistical consultation and analysis service to researchers in various areas, such as HIV/AIDS, obstetrics and gynaecology, gastroenterology, and critical care.

Jeong Eun Min

Senior Statistician

Jeong Eun Min is a senior statistician working with Dr. Bohdan Nosyk. She provides statistical support for various research projects related with HIV/AIDS and substance use disorder. She received her MSc in Statistics from Simon Fraser University.

Google Scholar

Tima Mohammadi

Health Economist

M.Sc., MA

Ms. Tima Mohammadi is a Health Economist with the pharmacoeconomics program of research, the Advancing Decision-Making in Medicine (DcIDE) group at CHÉOS.

She has a MA in Economics from Simon Fraser University and a M.Sc. in Socioeconomic Systems Engineering from the Institute for Management and Planning Studies (IMPS), Tehran. Tima has worked as a research analyst at Collaboration for Outcomes Research and Evaluation (CORE). She also held a faculty position at IMPS for seven years and conducted several research projects in economics evaluation and statistical analysis. Her research interests are focused on decision-analytic modeling and simulation, preference elicitation techniques (with a particular focus on using Bayesian methods in econometric analysis of discrete choice data), and health technology assessment.

Nishan Mudalige

Senior Statistician

Nishan joined CHÉOS as a senior statistician in March 2023. He is part of the HERU team, supervised by Dr. Bohdan Nosyk. Nishan completed his PhD in Statistics from the University of Guelph (Ontario) in 2020. Prior to joining CHÉOS, Nishan worked as a senior statistician at the Provincial Health Services Authority and was also a postdoctoral fellow in Statistics at Université Laval (Québec).

Monica Norena


Monica holds a Master of Science in Statistics from Simon Fraser University and worked over 15 years analyzing outcomes from BC’s Intensive Care Unit database under Dr. Peter Dodek’s supervision. Currently she provides statistical support to multiple research projects as part of the CHEOS team.


Hong Qian

Senior Statistician


Ms. Hong Qian joined CHÉOS in June 2008. She holds a M.Sc. in Statistics from McMaster University. With over 10 years’ professional experience as a statistician working for research organizations, including the B.C. Cancer Agency and Albert Einstein College of Medicine (New York), Ms. Qian provides statistical support to multiple projects—specifically in the areas of osteoarthritis, diabetes, and cardiovascular diseases. She also provides advice on study design and statistical analysis for various short-term research projects.

Yi Sui

Mathematical Modeler

Dr. Yi Sui is a mathematical modeler working with Dr. Bohdan Nosyk. She holds a PhD in Applied and Computational Mathematics from Simon Fraser University, a M.Sc. in Applied Mathematics from the University of British Columbia, and a B.A. with Honors in Applied Mathematics from University of California, Berkeley.

Huiying Sun

Senior Statistician

PhD, M.Sc.
Pharmacoeconomics Program

Research Interests

  • Statistical modeling and computing
  • Cost-effectiveness analysis
  • HIV/AIDS epidemiology

Dr. Huiying Sun has a PhD in Mathematics from Harbin Institute of Technology, China, and a master’s degree in Statistics from University of British Columbia. She joined CHÉOS as a statistician in 2000.

Dr. Sun’s primary interest is in statistical modelling and computing. Her work includes statistical and mathematical consultation and data analysis. She has worked on cost-effectiveness studies of interventions for various diseases, such as hypertension, hip fraction, psoriasis, rheumatoid arthritis, and HIV/AIDS. The methods used in these analyses include the Markov model, Monte-Carlo simulation, probabilistic sensitivity analysis, and Bayesian meta-analysis. She is also interested in the research of HIV/AIDS epidemiology, especially health-related quality of life of HIV/AIDS patients.

Youwei Yan


Youwei joined CHÉOS as a statistician in December 2022. He works with Dr. Bohdan Nosyk and provides statistical support to the team. He holds a BSc and a MSc both in Statistics from Simon Fraser University. He is interested in statistical learning methods and Bayesian approaches.


Our communications experts are responsible for publicizing the success of our Scientists, staff, and organization as a whole. The communications department also assists researchers in the planning and implementation of knowledge translation, research communication, and recruitment strategies.

Hannah Branch

Communications Specialist

Ms. Hannah Branch joined the communications department in the fall of 2019. She holds a degree in Human Biology from the University of Birmingham and has over ten years’ experience working in health care. Starting her career as commissioning editor of two medical journals, Hannah has since worked in other medical communications and PR roles, developing training materials and campaigns across a variety of health care areas.


Michaela Davies

Director of Communications

Michaela holds a Masters in Communications and has a breadth of experience working within health care non-profits, as well as large, publicly traded organizations.


Phone: 604-682-2344 ext. 68306

Hannah Mold

Communications Specialist (maternity leave cover)

Hannah Mold joined the Communications Department in March 2023. She holds a Biology degree from the University of Sussex and has previously worked in the non-profit sector.

When not at work, she can be found enjoying the outdoors, cooking (& eating!) and attempting to improve her pottery skills.

Alison Müller

Communications & Social Media Officer

Dr. Alison Müller joined CHÉOS/CTN in October 2021. While completing a PhD in physiology (University of Alberta) and a postdoctoral fellowship in digital health communications (UBC), she pursued various opportunities to engage the public about medical research. When she’s not helping our research reach a larger audience, she’s involved in other science communication ventures, including writing her biotech blog.

Sean Sinden

Manager, Communications & Knowledge Mobilization

Mr. Sean Sinden joined the Communications Department in February of 2016. He holds a Master of Public Health degree and a Master of Science degree from UBC. Sean works with CHÉOS Scientists and staff to communicate information about research projects and their results and implications to a variety of audiences.


Phone: 604-806-8829

Grants and Research Development

Our Grants and Research Development department helps researchers find and secure research funding and other support opportunities. The department also leads internal development of collaborations, partnerships, and organizational funding and support.

Adeleke Fowokan

Director of Grants

Adeleke Fowokan has a PhD from Simon Fraser University and a Master’s in Public Health from the University of Essex, England. Adeleke’s experience spans the field of cardiovascular disease, pediatric oncology, global health and HIV research. Adeleke is highly skilled in a range of research methods including quantitative, qualitative, mixed-methods and evidence synthesis approaches. He has authored several manuscripts and contributed to successful research grants.

Eva Lillquist

Grant Coordinator