Childhood vaccination should have been included in asthma study.
Blomfield
R
R
D000293:Adolescent; D001249:Asthma / Q000453:epidemiology*; D002648:Child; D006801:Humans; D007114:Immunization / Q000009:adverse effects*; D012423:Rural Health; D014504:Urban Health; D014611:Vaccination / Q000009:adverse effects