[1] Northwell Hlth Syst, Zucker Sch Med Hofstra Northwell, New Hyde Pk, NY USA
[2] Florida Hosp, Ctr Intervent Endoscopy, Orlando, FL USA
[3] Yale Univ, Dept Internal Med, Sect Digest Dis, New Haven, CT USA
[4] Univ Texas MD Anderson Canc Ctr, Dept Gastroenterol Hepatol & Nutr, Houston, TX 77030 USA
[5] Harvard Med Sch, Dept Internal Med, Div Gastroenterol, Boston, MA 02115 USA
[6] Massachusetts Gen Hosp, Boston, MA 02114 USA
[7] Boston Univ, Sch Med, Boston Med Ctr, Div Gastroenterol, Boston, MA 02118 USA
[8] Rush Univ, Med Ctr, Dept Internal Med, Div Digest Dis, Chicago, IL 60612 USA
[9] Mayo Clin Arizona, Div Gastroenterol & Hepatol, Scottsdale, AZ USA
[10] Tulane Univ, Dept Gastroenterol & Hepatol, New Orleans, LA 70118 USA
[11] Univ Michigan, Div Gastroenterol & Hepatol, Ann Arbor, MI 48109 USA
[12] Columbia Univ, Med Ctr New York Presbyterian, Div Digest & Liver Dis, New York, NY USA
[13] Univ Minnesota, Div Gastroenterol, Minneapolis, MN USA
[14] Calif Pacific Med Ctr, Intervent Endoscopy Serv, San Francisco, CA USA
[15] Univ Oklahoma, Hlth Sci Ctr, Div Digest Dis & Nutr, 800 Stanton L Young Blvd,AAT 7400, Oklahoma City, OK 73104 USA