1Dr. G. Bedogni M.D.,G. Bertoni M.D.,E. Ricci M.D.,R. Conioliaro M.D.,C. Pedrazzoli M.D.,G. Rossi M.D.,M. Meinero M.D.,G. Gardini M.D.,S. Contini M.D.. Colonoscopic excision of large and giant colorectal polyps[J] 1986,Diseases of the Colon & Rectum(12):831～835
