title: Asthma and urban air pollution.
authors.forename: R L
authors.initials: RL
authors.lastname: Maynard
mesh_terms: D000397:Air Pollution / Q000009:adverse effects*; D000818:Animals; D001249:Asthma / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D014504:Urban Health