1. ANDERSON D.L., CAMMERER R.C., BOYCE H.W. Jr. — «Pseudomembranous enterocolitis: clinical spectrum and endoscopic findings». (Abstract),Gastrointestinal Endoscopy, 1974,20, 174.
2. AOKI G., NAGASAKO K., NAKAE Y., YAZAWA C., TAKEMOTO T. — «The fibercolonoscopic diagnosis of intestinal tuberculosis». Comm. III International Congress of Gastrointestinal Endoscopy, Mexico City, Oct. 1974.
3. BANCHE M., ROSSINI F.P., FERRARI A. et Al. — «The role of coloscopy in the differential diagnosis between Idiopathic Ulcerative Colitis and Crohn's disease of the colon».Amer. J. Gastroent. (in press).
4. BARON J.H., CONNEL A.M., LENNARD-JONES J.E. — «Variation between observers in describing mucosal appearances in proctocolitis».Brit. Med. J., 1964,1, 89.
5. BARRIENTOS F.J., RODRIGUEZ A., OLAETA R., SANTOYO R., DE LA VEGA J.M. — «La colitis ulcerosa amibiana». Comm. V World Congress of Gastroenterology, Mexico City, Oct. 1974.