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3. Chronic diarrhoea of unknown origin;Read, N.W.; Krejs, J.; Santaana, C.A.; Morawski, S.; Fordtran, J.S.;Gastroenterology,1980
4. Colonoscopic diagnosis of minimal change colitis in patients with a normal sigmoidoscopy and normal air content contrast barium enema;Elliott, P.R.; Lennard-Jones, J.E.; Bartram, C.I.;Lancet,1982
5. Symptoms of the irritable bowel syndrome in ulcerative colitis;Isgar, B.; Harman, M.; Kaye, M.D.; Whorwell, P.J.;Gut,1983