_:vb50948228 . _:vb50948228 "url:http://en.wikipedia.org/wiki/Otosclerosis"^^ . _:vb50948228 . _:vb50948228 . _:vb50948228 . _:vb50948228 . _:vb50948228 . _:vb50948228 "url:http://www.merckmanuals.com/professional/ear_nose_and_throat_disorders/middle_ear_and_tympanic_membrane_disorders/otosclerosis.html?qt=otosclerosis&alt=sh"^^ . _:vb50948228 "An otitis interna characterized by an abnormal bone growth in the middle ear."^^ .