title: Is the prevalence of asthma changing?
authors: Department of Clinical Epidemiology and Social Medicine, St George's Hospital Medical School, London.
authors: H R
authors: HR
authors: Anderson
mesh_terms: D000293:Adolescent; D001249:Asthma / Q000453:epidemiology* / Q000401:mortality; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D006760:Hospitalization; D006801:Humans; D008297:Male; D012135:Respiratory Sounds; D009626:Terminology as Topic; D006113:United Kingdom