1. Department of Computer Science, University of California , Irvine, CA 92697, United States
2. Department of Biomedical Informatics, Harvard Medical School , Boston, MA 02115, United States
3. Department of Informatics, J. Craig Venter Institute , La Jolla, CA 92037, United States
4. Department of Pathology, University of California , San Diego, CA 92093, United States
5. Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology , La Jolla, CA 92037, United States
6. Department of Pathology, Stanford University , Stanford, CA 94305, United States