1. Rubin, E, and Farber, JL: “Chapter 13, The Gastrointestinal Tract,” in Rubin E, and Farber, JL (eds.):Pathology. Philadelphia, J. B. Lippincott Company, 1988, p. 704.
2. Gunderson, LL, Sugarbaker, PH, and Wittes, RE: “Chapter 25, Colorectal Cancer,” in DeVita, VTJr, Hellman, S, and Rosenberg, SA (eds.):Cancer: Principles & Practice of Oncology, 2nd Edition. Philadelphia, J.B. Lippincott Company, 1985, pp. 795–884.
3. Katz, J:The Silent World of Doctor and Patient. New York, Free Press, 1984.
4. Cassell, EJ:Talking With Patients: Volume 2 Clinical Technique. Cambridge, MIT Press, 1985.
5. Kermode, F:The Sense of an Ending. New York, Oxford University Press, 1967, p. 160.