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no more sensitive to infection Iban the dura on the roof of the tegmen tympani. Who would think of leaving a fragment of diseased mucous membrane in a radical mastoid operation because the tegmen was paper-thin? The dura is exposed in a large percentage 01 such cases and cerebral complications rarely follow. Second, thisdoi:10.1001/jama.1911.04260090018010 fatcat:xhtnt4i2b5efbmp3q5r7sv32v4