Epidemiology of acute otitis media in children.
D000208:Acute Disease; D000293:Adolescent; D000367:Age Factors; D002648:Child; D002656:Child Day Care Centers; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D010033:Otitis Media / Q000453:epidemiology*; D011446:Prospective Studies; D012111:Residence Characteristics; D012621:Seasons; D012737:Sex Factors; D013548:Sweden