title: The increasing problem of asthma in the United States.
authors.forename: P J
authors.initials: PJ
authors.lastname: Gergen
authors.forename: K B
authors.initials: KB
authors.lastname: Weiss
mesh_terms: D000293:Adolescent; D000328:Adult; D000397:Air Pollution; D016902:Air Pollution, Indoor; D001249:Asthma / Q000453:epidemiology*; D002648:Child; D006801:Humans; D015994:Incidence; D015995:Prevalence; D012307:Risk Factors; D014028:Tobacco Smoke Pollution; D014481:United States / Q000453:epidemiology; D014777:Virus Diseases / Q000453:epidemiology
chemical_list: D014028:Tobacco Smoke Pollution