How common is hearing loss?
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D034381:Hearing Loss / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008403:Mass Screening; D015995:Prevalence; D014481:United States / Q000453:epidemiology