Presidential Address: PDF OnlyThe sigmoidal curveBirnbaum, Walter D. M.D.1 Author Information 1Department of Surgery, University of California Medical School, San Francisco, California Read at the Meeting of the American Proctologic Society, Las Vegas, Nevada, May 10 to 13 1971 Diseases of the Colon & Rectum: March 1972 - Volume 15 - Issue 2 - p 85-92 doi: 10.1007/BF02587249 Buy Metrics © The ASCRS 1972
