Cochlear implants: 1981 to 1985.
D001302:Audiometry, Speech; D003054:Cochlear Implants / Q000639:trends*; D003638:Deafness / Q000601:surgery*; D004432:Ear, Middle / Q000473:pathology; D006801:Humans; D011183:Postoperative Complications / Q000473:pathology; D011379:Prognosis; D012106:Research; D014481:United States; D014486:United States Food and Drug Administration