Lynd LD. Dispensation of long-acting β agonists with or without inhaled corticosteroids, and risk of asthma-related hospitalisation: a population-based study.

Sadatsafavi M, Lynd LD, Marra CA, Fitzgerald JM. Dispensation of long-acting β agonists with or without inhaled corticosteroids, and risk of asthma-related hospitalisation: a population-based study. Thorax. 2014 Apr;69(4):328-34. doi: 10.1136/thoraxjnl-2013-203998. Epub 2013 Nov 26. PMID: 24281327.