[1] Univ Politecn Marche Azienda Osped Univ Marche, Clin Gastroenterol & Hepatol, Ancona, Italy
[2] GB Rossi Univ Hosp, Pancreas Inst, Diagnost & Intervent Endoscopy Pancreas, I-37134 Verona, Italy
[3] Univ Bologna, Hosp Imola, Gastroenterol Unit, Imola, Italy
[4] Univ Bologna, S Orsola Hosp, Dept Med & Surg Sci, IRCCS Azienda Osped Univ Bologna,Gastroenterol Uni, Bologna, Italy
[5] IRCCS San Raffaele Inst, Pancreas Translat & Clin Res Ctr, Pancreatobiliary Endoscopy & Endosonog Div, Milan, Italy
[6] ASST, Digest Endoscopy & Gastroenterol Dept, Lecce, Italy
[7] Gastroenterol Endoscopia Digestiva Azienda Osped U, Modena, Italy
[8] Forli Cesena Hosp, Gastroenterol & Digest Endoscopy Unit, Ausl Romagna, Cesena, Forli, Italy
[9] ASST Niguarda Hosp, Digest & Intervent Endoscopy Unit, Milan, Italy
[10] IRCCS, Human Res Hosp, Div Gastroenterol & Digest Endoscopy, I-20089 Milan, Italy
[11] IRCCS ISMETT, Dept Diagnost & Therapeut Serv, Endoscopy Serv, Palermo, Italy
[12] Univ Enna Kore, Umberto I Hosp, Dept Med & Surg, Gastroenterol Unit, Enna, Italy
[13] Padua Univ Hosp, Dept Surg Oncol & Gastroenterol Sci, Padua, Italy
[14] IRCCS Fdn Policlin San Matteo, Gastroenterol & Digest Endoscopy Unit, Viale Camillo Golgi 19, I-27100 Pavia, Italy
[15] AUSL IRCCS Reggio Emilia, Dipartimento Oncol & Tecnol Avanzate, Gastroenterol Endoscopia Digestiva, Reggio Emilia, Italy
[16] Univ Bologna, Dept Med & Surg Sci, Div Pancreat Surg, IRCCS Azienda Osped Univ Bologna, Bologna, Italy
[17] ARNAS Civ Di Cristina Benfratelli Hosp, Gastroenterol & Endoscopy Unit, Palermo, Italy