title: The cochlear implant: 1980 update.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002986:Clinical Trials as Topic; D003054:Cochlear Implants / Q000523:psychology; D012048:Correction of Hearing Impairment; D003638:Deafness / Q000151:congenital / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011581:Psychological Tests; D013063:Speech Discrimination Tests