title: Air pollution and respiratory morbidity.
authors.forename: R L
authors.initials: RL
authors.lastname: Maynard
authors.forename: R E
authors.initials: RE
authors.lastname: Waller
mesh_terms: D000397:Air Pollution / Q000032:analysis*; D005062:European Union; D006801:Humans; D008171:Lung Diseases / Q000209:etiology*; D012015:Reference Standards; D014944:World Health Organization