STRATEGY FOR REGENERATION OF CHRONIC TYMPANIC MEMBRANE PERFORATION WITH CHOLESTEATOMA TUMOR OR SEVERE CALCIFICATION. - Kanemaru SI; Kanai R; Yoshida M; Kitada Y; Omae K; Hirano S (Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology, 2018)