title: [A clinical study on progression of sensorineural hearing loss of unknown etiology (author's transl)].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D005260:Female; D005500:Follow-Up Studies; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged