[Studies on the influence of discharge from the middle ear upon the hearing].
D000293:Adolescent; D000328:Adult; D000818:Animals; D001299:Audiometry; D002415:Cats; D004432:Ear, Middle / Q000503:physiopathology*; D005260:Female; D006309:Hearing; D006801:Humans; D008297:Male; D008875:Middle Aged; D010033:Otitis Media / Q000503:physiopathology*