[Air pollution and the health of young children].
D000397:Air Pollution; D002675:Child, Preschool; D002980:Climate; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006967:Hypersensitivity / Q000209:etiology; D007564:Japan; D008297:Male; D008403:Mass Screening; D012140:Respiratory Tract Diseases / Q000453:epidemiology / Q000209:etiology*