title: Passive smoking and croup.
authors: G A
authors: GA
authors: Gates
mesh_terms: D003440:Croup / Q000209:etiology*; D006801:Humans; D007827:Laryngitis / Q000209:etiology*; D012107:Research Design; D014028:Tobacco Smoke Pollution / Q000009:adverse effects*
chemical_list: D014028:Tobacco Smoke Pollution