Crump RT, Lai E, Liu G, Janjua A, Sutherland JM. Establishing utility values for the 22-item Sino-Nasal Outcome Test (SNOT-22) using a crosswalk to the EuroQol-five-dimensional questionnaire-three-level version (EQ-5D-3L). Int Forum Allergy Rhinol. 2017 May;7(5):480-487. doi: 10.1002/alr.21917. Epub 2017 Feb 9.
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