1. Trauma resulting from sigmoid manipulation;Crohn;Am. J. Digest. Dis. & Nutrition,1936
2. Perforations from proctoscopy;Andresen;Gastroenterology,1947
3. Wounds of rectum;Morgan;Surg., Gynec. & Obst.,1945
4. Perforating injuries of the rectum;O'Reagen;Australian & New Zealand J. Surg.,1946
5. Pneumatic rupture of intestine;Andrews;Surg., Gynec. & Obst.,1911