title: Learning about air pollution and asthma.
authors.forename: J M
authors.initials: JM
authors.lastname: Samet
mesh_terms: D000397:Air Pollution / Q000009:adverse effects*; D001249:Asthma / Q000453:epidemiology* / Q000209:etiology*; D015982:Bias; D006801:Humans; D012107:Research Design / Q000592:standards*