[1] Univ Texas MD Anderson Canc Ctr, Div Canc Med, Houston, TX 77030 USA
[2] Mem Sloan Kettering Canc Ctr, Dept Med, New York, NY 10065 USA
[3] Weill Cornell Med Coll, Dept Med, New York, NY 10065 USA
[4] Ohio State Univ, Dept Internal Med, Div Med Oncol, James Canc Hosp, Columbus, OH 43210 USA
[5] Ohio State Univ, Ctr Comprehens Canc, Columbus, OH 43210 USA
[6] Univ Calif Los Angeles, Dept Med, Div Hematol Oncol, Los Angeles, CA 90404 USA
[7] Clin Univ St Luc, Dept Gastroenterol & Digest Oncol, Brussels, Belgium
[8] Catholic Univ Louvain, Brussels, Belgium
[9] Massachusetts Gen Hosp, Ctr Canc, Boston, MA 02114 USA
[10] Harvard Med Sch, Dept Med, Boston, MA 02115 USA
[11] Rocky Mt Canc Ctr, Denver, CO 80218 USA
[12] US Oncol Res, Denver, CO 80218 USA
[13] Univ Manchester, Div Canc Sci, Christie NHS Fdn Trust, Dept Med Oncol, Manchester, Lancs, England
[14] Seoul Natl Univ Hosp, Dept Internal Med, Seoul, South Korea
[15] Vall dHebron Univ Hosp, Vall dHebron Inst Oncol & IOB quiron, Barcelona, Spain
[16] Univ Arizona, Ctr Canc, Div Hematol Oncol, Tucson, AZ 85724 USA
[17] QED Therapeut, San Francisco, CA USA
[18] Univ Texas MD Anderson Canc Ctr, Dept Gastrointestinal Med Oncol, Houston, TX 77030 USA