[Hearing loss caused by mumps--epidemiological investigation and clinical features].
D002648:Child; D002675:Child, Preschool; D006311:Hearing Disorders / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D007564:Japan; D008297:Male; D009107:Mumps / Q000150:complications* / Q000453:epidemiology