[1] Stanford Univ, Div Gastroenterol & Hepatol, Sch Med, Stanford, CA 94035 USA
[2] Int Agcy Res Canc, Screening Grp, F-69372 Lyon, France
[3] Showa Univ, No Yokohama Hosp, Ctr Digest Dis, Yokohama, Kanagawa, Japan
[4] Klinikum Bayreuth, Inst Pathol, Bayreuth, Germany
[5] Univ Minnesota, Sch Med, Minnesota Gastroenterol, Minneapolis, MN 55455 USA
[6] Juntendo Univ, Sch Med, Dept Pathol, Tokyo 113, Japan
[7] TF Clin, Tokyo, Japan
[8] Natl Canc Ctr, Div Endoscopy, Tokyo, Japan
[9] Kyushu Univ Hosp, Med Inst Bioregulat, Dept Surg, Beppu, Oita, Japan
[10] Natl Canc Ctr, Div Technol, Res Ctr Canc Prevent & Screening, Tokyo 104, Japan
[11] Natl Canc Ctr, Clin Lab Div, Tokyo, Japan
[12] Niigata Univ, Div Mol & Diagnost Pathol, Grad Sch Med & Dent Sci, Niigata, Japan
[13] Chinese Univ Hong Kong, Inst Digest Dis, Prince Wales Hosp, Shatin, Hong Kong, Peoples R China
[14] Univ Washington, Cent Div Gastroenterol, Grp Hlth Cooperat, Seattle, WA 98195 USA
[15] Univ Calif San Francisco, GI Hlth Outcomes Res Program, San Francisco, CA 94143 USA
[16] Boston Univ, Dept Pathol, Med Ctr, Boston, MA USA
[17] Portland VA Hosp, Div Gastroenterol, Portland, OR USA
[18] Univ N Carolina, Dept Med, Chapel Hill, NC USA
[19] Palo Alto Hlth Care Syst, Gastroenterol Sect, Palo Alto, CA USA
[20] Mem Sloan Kettering Canc Ctr, Dept Epidemiol & Biostat, New York, NY 10021 USA
[21] Fdn Gastroenterol, Endoscopy Unit Rio Grande Sul, Porto Alegre, RS, Brazil
[22] Inst Arnault Tzanck, Dept Gastroenterol & Hepatol, St Laurent Du Var, France
[23] Karolinska Inst, Ersta Hosp, Ctr Gastrointestinal Dis, Stockholm, Sweden
[24] Karolinska Inst, Dept Pathol, Res Lab, S-10401 Stockholm, Sweden
[25] Free Univ Brussels, Hop Erasme, Dept Gastroenterol, Clin Intestinal Dis & Nutr Support, B-1070 Brussels, Belgium
[26] Johannes Gutenberg Univ Mainz, St Hildegardis Krankenhaus, Klin Innere Med & Gastroenterol, Mainz, Germany
[27] Univ London Imperial Coll Sci Technol & Med, Harrow, Middx, England