1. The adenoma-carcinoma sequence;Day, D.W.; Morson, B.C.,1978
2. The percarcinomatous phase of ulcerative colitis;Riddell, R.H.,1976
3. Die pathologisch - anatomischen Grundlagen der Chirurgie des Rektumkarzinoms;Westhues, M.,1934
4. Structure and significance of metaplastic nodules in the rectal mucosa;Arthur, J.F.;J Clin Pathol,1968
5. Histological typing of intestinal tumours;Morson, B.C.; Sobin, L.H.,1976