title: The interpretation of epidemiologic studies.
authors.forename: M
authors.initials: M
authors.lastname: Angell
mesh_terms: D002648:Child; D003550:Cystic Fibrosis / Q000503:physiopathology; D004812:Epidemiologic Methods; D006801:Humans; D012307:Risk Factors; D014028:Tobacco Smoke Pollution / Q000009:adverse effects
chemical_list: D014028:Tobacco Smoke Pollution