Ageing of the otosclerotic focus.
D000368:Aged; D000375:Aging; D003051:Cochlea / Q000473:pathology; D004429:Ear Ossicles / Q000473:pathology; D006801:Humans; D010040:Otosclerosis / Q000473:pathology*; D013201:Stapes Surgery; D013701:Temporal Bone / Q000473:pathology*