[1] Ist Sci San Raffaele, Pancreat Biliary Endoscopy & Endosonog Div, Pancreas Translat & Clin Res Ctr, Milan, Italy
[2] AUSL Romagna, Forli Cesena Hosp, Gastroenterol & Digest Endoscopy Unit, Forli Cesena, Italy
[3] IRCCS, Dept Diagnost & Therapeut Serv, Endoscopy Serv, ISMETT, Palermo, Italy
[4] Univ Palermo, Dept Precis Med Med Surg & Cit Care Me Pre CC, Palermo, Italy
[5] GB Rossi Univ Hosp, Pancreas Inst, Diagnost & Intervent Endoscopy Pancreas, I-37134 Verona, Italy
[6] Alma Mater Studiorum Univ Bologna, Dept Med & Surg Sci DIMEC, Bologna, Italy
[7] Univ Foggia, Dept Med Sci, Gastroenterol Unit, Foggia, Italy
[8] Humanitas Univ, Dept Biomed Sci, Pieve Emanuele, Italy
[9] IRCCS, Human Res Hosp, Div Gastroenterol & Digest Endoscopy, Milan, Italy
[10] ASST Lecco, Digest Endoscopy & Gastroenterol Dept, Lecce, Italy
[11] Human Mater Domini, Gastrointestinal Endoscopy Unit, I-21100 Castellanza, Italy
[12] Azienda Osped Univ Policlin Modena, Gastroenterol Endoscopia Digestiva, Modena, Italy
[13] Osped Mare, ASL Ctr NA1, Dept Gastroenterol, Naples, Italy
[14] ASST Niguarda, Niguarda Hosp, Milan, Italy
[15] Univ Bologna, Hosp Imola, Gastroenterol Unit, Imola, Italy
[16] Univ Enna Kore, Umberto Hosp 1, Dept Med & Surg, Gastroenterol Unit, Enna, Italy
[17] Fdn Ist G Giglio, Gastroenterol & Endoscopy Unit, Cefalu, Italy
[18] IRCCS, Pancreato Biliary Endoscopy & EUS Div, San Raffaele Sci Inst, Milan, Italy
[19] IRCCS Fdn Policlin San Matteo, Gastroenterol & Digest Endoscopy Unit, Pavia, Italy