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Start Over Subjects Anesthesia -- methods ✖Remove constraint Subjects: Anesthesia -- methods Titles Etherization by the rectum: report of four cases by Yversen's method : read before the Philadelphia County Medical Society, June 18, 1884 ✖Remove constraint Titles: Etherization by the rectum: report of four cases by Yversen's method : read before the Philadelphia County Medical Society, June 18, 1884

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