Hilzenrat Nir, Lamoureux Esther, Alpert Lesley
Division of Gastroenterology, Department of Medicine, The Sir Mortimer B Davis-Jewish General Hospital, McGill University, Montréal, Quebéc.
Gastrointest Endosc. 2003 Aug;58(2):307-8. doi: 10.1067/mge.2003.352.