Epidemiology of asthma: severity matters.
Weissman
David N
DN
D001249:Asthma / Q000453:epidemiology* / Q000209:etiology; D001315:Australia; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D012130:Respiratory Hypersensitivity / Q000453:epidemiology / Q000209:etiology; D012307:Risk Factors