Patterns of respiratory illness in Sheffield infant schoolchildren.
D000397:Air Pollution; D002648:Child; D004739:England; D005260:Female; D006801:Humans; D008297:Male; D012129:Respiratory Function Tests; D012140:Respiratory Tract Diseases / Q000453:epidemiology*; D012141:Respiratory Tract Infections / Q000453:epidemiology*; D012924:Social Conditions