title: Air pollution and asthma--fact or artifact? A plea for inclusion of objective measures in environmental epidemiology.
authors.forename: E
authors.initials: E
authors.lastname: von Mutius
mesh_terms: D000393:Air Pollutants; D000397:Air Pollution; D001249:Asthma / Q000453:epidemiology; D002617:Chemical Industry; D002648:Child; D004812:Epidemiologic Methods; D006801:Humans; D010578:Petroleum; D015995:Prevalence; D012140:Respiratory Tract Diseases / Q000453:epidemiology*; D013624:Taiwan / Q000453:epidemiology
chemical_list: D000393:Air Pollutants; D010578:Petroleum