[1] Univ Calif Los Angeles, David Geffen Sch Med, Dept Med, Los Angeles, CA 90095 USA
[2] Cedars Sinai Med Ctr, Karsh Div Gastroenterol & Hepatol, Los Angeles, CA 90048 USA
[3] Univ Calif Los Angeles, David Geffen Sch Med, Vatche & Tamar Manoukian Div Digest Dis, Los Angeles, CA 90095 USA
[4] Olive View UCLA Med Ctr, Div Gastroenterol, Dept Med, 14445 Olive View Dr, Sylmar, CA 91342 USA
[5] Fred Hutchinson Canc Res Ctr, Clin Res Div, 1124 Columbia St, Seattle, WA 98104 USA
[6] Fred Hutchinson Canc Res Ctr, Publ Hlth Sci Div, 1124 Columbia St, Seattle, WA 98104 USA
[7] Univ Washington, Sch Med, Dept Med, Div Gastroenterol, Seattle, WA 98195 USA
[8] Univ Maryland, Sch Med, Dept Med, Div Gastroenterol & Hepatol, Baltimore, MD 21201 USA
[9] Ohio State Univ, Coll Med, Div Gastroenterol Hepatol & Nutr, Columbus, OH 43210 USA
[10] NYU Langone Hlth, Div Gastroenterol & Hepatol, New York, NY USA
[11] Univ Calif Los Angeles, Jonsson Comprehens Canc Ctr, Kaiser Permanente Ctr Hlth Equ, Los Angeles, CA 90024 USA
[12] Vet Affairs Greater Los Angeles Healthcare Syst, Div Gastroenterol, Dept Med, Los Angeles, CA USA