Author information: (1)Dana-Farber Cancer Institute, Department of Medical Oncology, 450 Brookline Avenue, Boston, MA, USA. Electronic address: william_hahn@dfci.harvard.edu. (2)Department of Biomedical Engineering and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA. (3)Knight Cancer Institute and Division of Hematology and Medical Oncology, Oregon Health & Science University, Portland, OR, USA. (4)Department of Systems Biology, Biomedical Informatics, Biochemistry and Molecular Biophysics, and Medicine, Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA. (5)Broad Institute, 415 Main Street, Cambridge, MA, USA. (6)Department of Cell Biology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA. (7)Department of Pharmacology and Chemical Biology, Emory Chemical Biology Discovery Center, and Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA. (8)Office of Cancer Genomics, Center for Cancer Genomics, National Cancer Institute, NIH, Bethesda, MD, USA. (9)Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA. (10)Moores Cancer Center, Center for Novel Therapeutics and Department of Medicine, UC San Diego, La Jolla, CA, USA. (11)Hematology Division, Stanford University School of Medicine, Stanford, CA, USA. (12)Department of Microbiology and Immunology, UCSF Diabetes Center, and Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA. (13)Department of Cell, Development and Cancer Biology, Knight Cancer Institute, Oregon Health and Sciences University, Portland, OR, USA. (14)Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Smithville, TX, USA. (15)Dana-Farber Cancer Institute, Department of Medical Oncology, 450 Brookline Avenue, Boston, MA, USA. (16)Knight Cancer Institute, Oregon Health & Science University and Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR, USA. (17)Departments of Neurology, Neurological Surgery, Pediatrics, and Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA.