- Correspondence to:
Professor H R Koelz, Division of Gastroenterology, Department of Internal Medicine, Triemli Hospital, CH-8063 Zurich, Switzerland;
- Accepted August 20, 2002
- First published January 1, 2003.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.