1. Hamartomatous inverted polyps of the rectum;Allen, Jr, M.S.;Cancer,1966
2. Ulcere chronique du rectum. In Anatomfie Pathologique du Corps;Cruveilhier, J.;Hunmain; maladies du rectum,1829
3. Colitis cystica profunda;Epstein, S.E.; Ascari, W.Q.; Ablow, R.C.; Seaman, W.B.; Lattes, R.;Amner. J. clin. Path,1966
4. Solitary ulcer of the rectum;Haskell, B.; Rovner, H.;Dis. Colon Rect,1965
5. Personal communication;Lloyd-Davies, 0. V,1969