Lynd LD The natural history of severe asthma and influences of early risk factors: a population-based cohort study

Chen W, Marra CA, Lynd LD, FitzGerald JM, Zafari Z, Sadatsafavi M. The natural history of severe asthma and influences of early risk factors: a population-based cohort study. Thorax. 2016 Mar; 71(3):267–75. pii: thoraxjnl-2015-207530. doi: 10.1136/thoraxjnl-2015-207530. Epub 2016 Jan 5. PMID: 26732738.