Salerno Francesco, Gerbes Alexander, Ginès Pere, Wong Florence, Arroyo Vicente
Department of Internal Medicine, Policlinico IRCCS San Donato, University of Milan, Via Morandi, 30, 20097 San Donato (MI), Italy.
Gut. 2007 Sep;56(9):1310-8. doi: 10.1136/gut.2006.107789. Epub 2007 Mar 27.