[1] McGill Univ, Jewish Gen Hosp, Div Gastroenterol, Montreal, PQ H3A 2T5, Canada
[2] Ctr Hosp Univ Montreal, Div Gastroenterol, Montreal, PQ, Canada
[3] China Med Univ, Shengjing Hosp, Endoscopy Ctr, 36 Sanhao St, Shenyang 110004, Liaoning, Peoples R China
[4] Univ Med & Pharm, Res Ctr Gastroenterol & Hepatol Craiova, Craiova, Romania
[5] Thomas Jefferson Univ Hosp, Div Gastroenterol & Hepatol, Philadelphia, PA 19107 USA
[6] Univ Utah, Sch Med, Dept Internal Med, Div Gastroenterol, Salt Lake City, UT USA
[7] Wake Forest Baptist Hlth, Dept Gastroenterol, Winston Salem, NC USA
[8] Brigham & Womens Hosp, Div Gastroenterol Hepatol & Endoscopy, 75 Francis St, Boston, MA 02115 USA
[9] Univ Texas MD Anderson Canc Ctr, Dept Gastroenterol Hepatol & Nutr, Houston, TX 77030 USA
[10] Northeast Alabama Reg Med Ctr, Div Gastroenterol, Anniston, AL USA
[11] Johns Hopkins Univ Hosp, Dept Med, Baltimore, MD 21287 USA
[12] Johns Hopkins Univ Hosp, Div Gastroenterol & Hepatol, Baltimore, MD 21287 USA
[13] Montefiore Med Ctr, Div Gastroenterol & Liver Dis, 111 E 210th St, Bronx, NY 10467 USA
[14] Augusta Univ, Sect Gastroenterol Hepatol, Augusta, GA USA
[15] Changi Gen Hosp, Dept Gastroenterol & Hepatol, Singapore, Singapore
[16] Univ Caldas, Hosp Caldas, Surg Clin Gastroenterolgy, Manizales, Colombia
[17] AUSL Bologna Bellaria Maggiore Hosp, Unit Gastroenterol & Digest Endoscopy, Bologna, Italy
[18] Univ Bologna, Hosp Imola, Dept Med & Surg Sci, Gastroenterol Unit, Bologna, Italy
[19] Humanitas Res Hosp, Digest Endoscopy Unit, Div Gastroenterol, Milan, Italy
[20] Tel Aviv Sourasky Med Ctr, Dept Gastroenterol, Tel Aviv, Israel
[21] Div Gastroenterol, Digest Endoscopy Unit, Copenhagen, Denmark
[22] Ana Costa Hosp, Dept Surg, Sao Paulo, Brazil
[23] Cairo Univ, Dept Internal Med, Cairo, Egypt
[24] Erasmus Univ, Dept Gastroenterol & Hepatol, Med Ctr, Rotterdam, Netherlands
[25] Complejo Hosp Navarra, Endoscopy Unit, Pamplona, Spain
[26] Jaswant Rai Specialty Hosp, Dept Gastroenterol, Meerut, Uttar Pradesh, India
[27] All India Inst Med Sci, Dept Gastroenterol, New Delhi, India
[28] Asian Inst Gastroenterol, Dept Gastroenterol, Hyderabad, Telangana, India
[29] Postgrad Inst Med Educ & Res, Dept Gastroenterol, Chandigarh, India
[30] Global Hosp, Baldota Inst Digest Sci, Mumbai, Maharashtra, India
[31] Inst Paoli Calmettes, Endoscop Unit, Marseille, France
[32] Wakayama Med Univ, Dept Internal Med 2, Wakayama, Japan
[33] Tokyo Med Univ, Dept Gastroenterol & Hepatol, Tokyo, Japan
[34] Royal Adelaide Hosp, Dept Gastroenterol & Hepatol, North Terrace, Adelaide, SA, Australia
[35] Royal Prince Alfred Hosp, AW Morrow Gastroenterol & Liver Ctr, Camperdown, NSW, Australia