1. Computational Biology Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
2. Chemical Biology and Therapeutics Science Program, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
3. Department of Systems Biology, Columbia University, New York, NY 10032, USA
4. Office of Cancer Genomics, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
5. Computational Biology Program, School of Medicine, Oregon Health and Science University, Portland, OR 97239, USA
6. Department of Biomedical Informatics, Columbia University, New York, NY 10032, USA