Alves, Arnaud MD*; Panis, Yves MD, PhD*, **; Bouhnik, Yoram MD, PhD†; Maylin, Vincent MD*; Lavergne-Slove, Anne MD‡; Valleur, Patrice MD*
* Department of Surgery (Alves, Panis, Maylin, Valleur) Lariboisiére Hospital, Paris, France
† Department of Gastroenterology (Bouhnik); Lariboisiére Hospital, Paris, France
‡ Department of Pathology (Lavergne-Slove), Lariboisière Hospital, Paris, France
**Correspondence address: Yves Panis, MD, PhD, Service de Chirurgie Générale et Digestive, Hôpital Lariboisière, 2, rue Ambroise Paré, 75475 Paris Cedex 10 France.
Received December 12, 2002; accepted March 31, 2003.
☆No competing interests declared.