[1] Univ Iowa, Dept Surg, Carver Coll Med, Iowa City, IA 52242 USA
[2] Emory Univ, Winship Canc Inst, Dept Surg, Atlanta, GA 30322 USA
[3] Univ Penn, Sch Med, Dept Surg, Philadelphia, PA 19104 USA
[4] NCI, Endocrine Oncol Branch, Bethesda, MD 20892 USA
[5] Mem Sloan Kettering Canc Ctr, Gastr & Mixed Tumor Serv, 1275 York Ave, New York, NY 10021 USA
[6] LSU Hlth Sci Ctr, Dept Surg, New Orleans, LA USA
[7] Univ Toronto, Sunnybrook Hlth Sci Ctr, Dept Surg, Toronto, ON, Canada
[8] Rocky Mt Canc Ctr, Denver, CO USA
[9] Icahn Sch Med Mt Sinai, Dept Med, New York, NY 10029 USA
[10] Univ Iowa, Dept Radiol, Carver Coll Med, Iowa City, IA 52242 USA
[11] Univ S Florida, H Lee Moffitt Canc Ctr, Dept Radiol, Tampa, FL USA
[12] Univ Calif San Francisco, Dept Med, San Francisco, CA 94143 USA
[13] Univ S Florida, H Lee Moffitt Canc Ctr, Dept Med, Tampa, FL USA
[14] Univ Calif San Francisco, Dept Surg, San Francisco, CA 94143 USA
[15] Oregon Hlth & Sci Univ, Dept Surg, Portland, OR 97201 USA