1. Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA;2. Department of Pediatrics, Stanford University School of Medicine, Stanford, CA 94305, USA;3. High-Throughput Bioscience Center, Stanford University School of Medicine, Stanford, CA 94305, USA;4. Department of Comparative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA;5. Department of Cellular and Molecular Pharmacology, The California Institute for Quantitative Biomedical Research, Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94158, USA;6. Department of Microbiology and Immunology and University of California, San Francisco, Diabetes Center, University of California, San Francisco, San Francisco, CA 94143, USA;7. Department of Oncology and Department of Pediatrics, The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21213, USA