1. From the Bristol-Myers Squibb Pharmaceutical Research Institute, Princeton; The Cancer Institute of New Jersey, New Brunswick, NJ; Division of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL; Divisions of Medical Science and Population Science, Fox Chase Cancer Center, Philadelphia, PA; Institute for Drug Development, Cancer Therapy and Research Center, San Antonio, TX; Division of Medical Oncology, Washington University School of Medicine, St Louis, MO; Case...