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Traumatic perforation of the tympanic membrane (TM) was clinically studied by analyzing photographs of 231 ears treated in the Department of Otolaryngology of Tokyo Women's Medical College from May 1983 to December 1991. The dynamic features of TM and the mechanism of perforation are discussed.

CLINICAL STUDY ON PERFORATION OF THE TYMPANIC MEMBRANE AND DISCUSSION BASED ON EXPERIMENTALLY INDUCED TYMPANIC RUPTURE