de Franchis Roberto
Gastroenterology and Gastrointestinal Endoscopy Service, Department of Internal Medicine, University of Milan, IRCCS Ospedale Maggiore Policlinico, Via Pace 9, 20122 Milan, Italy.
J Hepatol. 2005 Jul;43(1):167-76. doi: 10.1016/j.jhep.2005.05.009.