1Jorge JMN,Yang YK,Wexner SD.Incidence and clinical significance of sigmoidoceles as determined by a new classfication system.Dis Colon Rectum,1994,37(11):1112-l117.
2Brmmer S,Mellgren A,Holomstrom BO,et ao,Pelvic anatomy and pathology is influenced by distention of the rectum defecoperitoneography before and after rectal filling with contrast medium.Dis Colon Rectum,1997,40(12):1477-1483.
