1. Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143
2. Diabetes Center, University of California, San Francisco, San Francisco, CA 94143
3. Laboratory of Immunology, National Eye Institute, NIH, Bethesda, MD 20892-1857
4. Department of Ophthalmology, Institute for Human Genetics, University of California, San Francisco, San Francisco, CA 94143
5. Department of Anatomy, Cardiovascular Research Institute, Bakar Aging Research Institute, and Institute for Human Genetics, University of California, San Francisco, San Francisco, CA 94143
6. Department of Medicine, University of California, San Francisco, San Francisco, CA 94143