Bargen, J.A. , and Barker, N.W.: Extensive arterial and venous thrombosis complicating chronic ulcerative colitis. Arch. Int. Med., 58: 17, 1936.
2.
Ricketts, W.E. , and Palmer, W.L.: Complications of chronic nonspecific ulcerative colitis. Gastroenterology, 7: 55, 1946.
3.
Warren, S., and Sommers, S.C.: Pathogenesis of ulcerative colitis. Am. J. Path., 25: 657, 1949.
4.
Sloan, W.P., Jr., Bargen, J.A., and Gage, R.P.: Life histories of patients with chronic ulcerative colitis: a review of 2,000 cases. Gastroenterology, 16: 25, 1950.
5.
Dennis, D., and Karlson, K.E.: Surgical measures as supplements to the management of idiopathic ulcerative colitis: cancer, cirrhosis, and arthritis as frequent complications. Surgery, 32: 892, 1952.