Robert J Mayer1, Alan P Venook2, Richard L Schilsky3. 1. Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA robert_mayer@dfci.harvard.edu. 2. Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA. 3. American Society of Clinical Oncology, Alexandria, VA.