Further reading

Allan, R.N., Keigliley, M.R.B., Alexander, J. and Hawkins, E. (1990) Inflammatory Bowel Diseases, Churchill Livingstone, Edinburgh.

Keighley, M.R.B. and Williams, N.S. (1999) Surgery of the Anus, Rectum and Colon, 2nd edn, WB. Saunders, London.