1. Carcinoma of the colon and rectum;Welch;New England J. Med.,1962
2. Carcinoma of the colon and rectum;Welch;New England J. Med.,1951
3. Observations of cancer of the colon and rectum in Connecticut: analyses based on 5572 proved cases;Ottenheimer;New England J. Med.,1955
4. Carcinoma of the colon, rectum and anus;McSwain;Ann. Surg.,1962
5. The results of surgical treatment of cancer of the rectum;Gilbertsen;Surg. Gynec. & Obst.,1962