[Epidemiology and etiology of hearing loss in children].
D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D034381:Hearing Loss / Q000453:epidemiology* / Q000209:etiology*; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D011379:Prognosis; D012307:Risk Factors