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2. Comparative features and course of ulcera tive and granulomatous colitis;Glotzer;New Eng. J. Med.,1970
3. Numerical taxonomy and discrimininant analysis applied to non-specific colitis;Hywel Jones;Quart. J. Med.,1973
4. Lectures on Pathological Anatomy;Wilks,1873
5. On simple ulcerative colitis and other rare intestinal ulcers;Hale-White;Guy's Hosp. Rep.,1888