1. Meeting of the Berlin Surgical Society;Nissen,1933
2. Anal ileostomy with sphincter preservation in patients requiring total colectomy for benign conditions;Ravitch;Surgery,1948
3. Primary resection of the colon and rectosigmoid;Wangensteen;Surgery,1943
4. Anal ileostomy with preservation of the sphincter: A proposed operation in patients requiring total colectomy for benign lesions;Ravitch;Surg. Gynecol. Obstet.,1947
5. Anal ileostomy with sphincter preservation in patients requiring total colectomy for benign conditions;Ravitch;Surgery,1948