1 Digestive and Liver Disease Unit, Faculty of Medicine and Psychology, Sapienza University of Rome at S. Andrea Hospital, Rome, Italy
2 Institute of Hygiene, Università Cattolica del Sacro Cuore, Rome, Italy
3 Department of Surgery, University of Verona, Verona, Italy
4 Department of Surgery, University of Pisa, Pisa, Italy
5 Department of Gastroenterology, University of Verona, Verona, Italy
6 Gastroenterology and Gastrointestinal Endoscopy Unit, Vita Salute San Raffaele University, Ospedale San Raffaele, Milan, Italy
7 Department of Surgery, Humanitas Scientific Institute, Rozzano-Milano, Italy
8 Endoscopy Unit, New Civil S. Agostino-Estense Hospital, Baggiovara-Modena, Italy
9 Department of Gastroenterology, Bellaria Maggiore Hospital, Bologna, Italy
10 Department of Internal Medicine, Bentivoglio Hospital, Bologna, Italy
11 Endoscopy Unit, ISMETT / UPMC (University of Pittsburgh Medical Center), Palermo, Italy
12 Digestive Endoscopy Unit, Catholic University Rome, Rome, Italy
13 Pancreas Unit, Department of Digestive Diseases and Internal Medicine, University of Bologna, Bologna, Italy
14 IRCCS San Raffaele Pisana, Rome, Italy
Correspondence: Gabriele Capurso, MD, PhD, Digestive and Liver Disease Unit, Faculty of Medicine and Psychology, Sapienza University of Rome at S. Andrea Hospital, Via di Grottarossa 1035, 00189 Rome, Italy. E-mail: [email protected]
SUPPLEMENTARY MATERIAL accompanies this paper at https://links.lww.com/AJG/A733
Received 8 September 2012; accepted 26 January 2013
published online 5 March 2013
