1. Simple, non-specific ulcer of colon;Barron;Arch. Surg.,1928
2. Simple ulcer of ascending colon and its complications;Wilkie;Surgery,1937
3. Simple non-specific ulcer of cecum;Cameron;Brit. J. Surg.,1939
4. Importance of simple ulcer of right side of colon in diagnosis of abdominal disease;Harrison;Arch. Surg.,1940
5. Simple ulcers of cecum, colon and rectum;Barlow;Brit. J. Surg.,1941