[1] Univ Pisa, Dept Gastroenterol, Gastrointestinal Unit, Via Paradisa 2, I-56127 Pisa, Italy
[2] Brotzu Hosp, Gastroenterol Unit, Cagliari, Italy
[3] AORN A Cardarelli, Naples, Italy
[4] Malatesta Novello Private Hosp, Cesena, Italy
[5] Univ Padua, Dept Surg Oncol & Gastroenterol, Div Gastroenterol, Padua, Italy
[6] Cardinal Massaia Hosp, Gastroenterol Unit, Asti, Italy
[7] San Luca Hosp, Digest Endoscopy Unit, Lucca, Italy
[8] Maggiore Hosp, Gastroenterol & Digest Endoscopy Unit, Crema, Italy
[9] Gastrointestinal & Hepatol Sect, Clin & Expt Med, Perugia, Italy
[10] UO Gastroenterol Univ AOU Pisana, Pisa, Italy
[11] Azienda Ospedaliera G. Brotzu, SC Gastroenterol, Cagliari, Italy
[12] AORN A Cardarelli, UO Gastroenterol Endoscopia Digest, Naples, Italy
[13] Casa Cura Malatesta Novello, Gastroenterol Endoscopia Digest, Fisiopatol Endoscopia Digest, Cesena, Italy
[14] Ospedale Cardinal Massaja, SOC Gastroenterol, Asti, Italy
[15] Osped Lucca, UO Gastroenterol, Lucca, Italy
[16] Azienda Osped Univ Padova, UO Gastroenterol Univ, Padua, Italy
[17] Univ Perugia, Dipartimento Med Interna, Sez Gastroenterol Epatol, I-06100 Perugia, Italy
[18] Azienda Osped Rilevanza Nazl A Cardarelli, Naples, Italy
[19] Univ Bari, Dipartimento Sci Biomed & Oncol Umana, Clin Med A Murri, I-70121 Bari, Italy
[20] Az Osped San Giovanni Addolorata, UOC Gastroenterol Endoscopia Digest, Rome, Italy
[21] Dip Med Interna Special Med, Rome, Italy
[22] Pio Albergo Trivulzio, Ambulatorio Gastroenterol Endoscopia Digest, Milan, Italy
[23] UO Gastroenterol Univ, Foggia, Italy
[24] Fondazione IRCCS Policlinico S Matteo, UO Med Interna I, Pavia, Italy
[25] Az Osped San Camillo Forlanini, UOC Gastroenterol Riabilitat, Rome, Italy
[26] PO Copertino, UOC Chirurg Gen, SS Endoscopia Digest, Lecce, Italy
[27] Osped M Raimondi San Cataldo, UOC Gastroenterol, Caltanissetta, Italy
[28] Ospedale Versilia, UOC Gastroenterol Endoscopia Digest, Viareggio, Italy
[29] Univ Salerno, Dipartimento Med Chirurg, Salerno, Italy
[30] Ospedali Riuniti Villa Sofia Cervello Palermo, UOC Gastroenterologia, Palermo, Italy
[31] Policlin Palermo, Gastroenterol Epatol, Palermo, Italy
[32] Azienda Osped Univ Senese, UOC Gastroenterol Endoscopia Operat, Dipartimento Oncol, Siena, Italy
[33] IRCCS AO Univ San Martino IST, UO Clin Gastroenterol Endoscopia, Genoa, Italy
[34] AOU Macchi, UO Gastroenterol Endoscopia Digest, Varese, Italy
[35] Osped Maggiore Crema, UO Gastroenterolo Endoscopia Digest, Crema, Italy
[36] Ist Nazl Tumori IRCCS, Ctr Riferimento Oncol, SOC Gastroenterol Oncol, Aviano, Italy
[37] UO Gastroenterol Osped Univ San Raffaele, Milan, Italy
[38] Univ Naples Federico II, Dipartimento Med Clin & Sperimentale, Naples, Italy
[39] Osped Valdichiana, UOS Endoscopia Digest, Montepulciano, Italy
[40] Ospedale San Giuseppe Multimed, Milan, Italy
[41] Osped Vittorio Emanuele III, UOC Med & Lungodegenza, Salemi, Italy
[42] Univ Florence, Dipartimento Chirurg & Med Traslaz, I-50121 Florence, Italy
[43] Osped San Carlo Borromeo Milano, UOC Gastroenterol, Milan, Italy
[44] Univ Cagliari, AOU Policlin Monserrato, Dipartimento Med Interna, I-09124 Cagliari, Italy
[45] Osped Sant Andrea, UO Gastroenterol, Rome, Italy
[46] AO Ist Ospitalieri Cremona, UOC Endoscopia Digest & Gastroenterol, Cremona, Italy
[47] Osped S Maria Del Prato, UOC Gastroenterol, Feltre, Italy
[48] AOU Careggi, SOS Fisiopatol Apparato Digerente & Motil, Florence, Italy
[49] Policlin Paolo Giaccone, UO Gastroenterol Epatol, Palermo, Italy
[50] Azienda Osped San Gerardo, UO Endoscopia Digest, Monza, Italy