One simple solution to hearing impairment.
Mahoney
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DF
D000368:Aged; D000369:Aged, 80 and over; D002571:Cerumen; D004424:Ear Canal; D004427:Ear Diseases / Q000150:complications / Q000628:therapy; D005260:Female; D034381:Hearing Loss / Q000209:etiology*; D006314:Hearing Loss, Conductive / Q000209:etiology* / Q000451:nursing; D006801:Humans; D007507:Therapeutic Irrigation