[1] Univ Colorado Anschutz Med Campus, Div Gastroenterol & Hepatol, Aurora, CO USA
[2] Univ Calif San Diego, Div Gastroenterol & Hepatol, San Diego, CA USA
[3] Univ Texas Southwestern Dallas, Med Ctr, Div Gastroenterol & Hepatol, Dallas, TX USA
[4] Mayo Clin, Div Gastroenterol & Hepatol, Rochester, MN USA
[5] Childrens Hosp Assoc, Leawood, KS USA
[6] Univ Amsterdam, Med Ctr, Div Gastroenterol & Hepatol, Acad Med Ctr, Amsterdam, Netherlands
[7] Johns Hopkins Univ, Div Gastroenterol & Hepatol, Baltimore, MD USA
[8] Univ Hosp Cleveland, Med Ctr, Div Gastroenterol & Hepatol, Cleveland, OH USA
[9] Kaiser Permanente, Permanente Med Grp, San Francisco, CA USA
[10] Univ Penn, Div Gastroenterol & Hepatol, Sch Med, Philadelphia, PA USA
[11] Univ Cambridge, MRC Canc Unit, Hutchison MRC Res Ctr, Cambridge, England
[12] Univ Coll Hosp, Div Gastroenterol & Hepatol, London, England
[13] Univ Utah, Div Gastroenterol & Hepatol, Salt Lake City, UT USA
[14] Mayo Clin, Div Gastroenterol & Hepatol, Rochester, MN USA
[15] Univ Calif Irvine, Div Gastroenterol, Irvine, CA USA
[16] Northwestern Univ, Div Gastroenterol & Hepatol, Chicago, IL 60611 USA
[17] Baylor Univ, Med Ctr, Div Gastroenterol & Hepatol, Dallas, TX USA
[18] Baylor Scott & White Hlth, Dallas, TX USA
[19] Univ Miami, Dept Pathol, Miami, FL USA
[20] Univ Calif Los Angeles, Div Gastroenterol & Hepatol, Los Angeles, CA USA
[21] LTC Charles S Kettles Vet Affairs Med Ctr, Vet Affairs Ctr Clin Management Res, Ann Arbor, MI USA
[22] Univ Michigan, Michigan Barretts Esophagus Program, Div Gastroenterol, Ann Arbor, MI 48109 USA
[23] Weill Cornell Univ, Div Gastroenterol & Hepatol, New York, NY USA
[24] Univ N Carolina, Div Gastroenterol & Hepatol, Chapel Hill, NC 27515 USA
[25] Mt Sinai West & Mt Sinai Morningside Hosp, Div Gastroenterol & Hepatol, New York, NY USA