1. Laboratory of Immunology, National Institutes of Health, Bethesda, MD
2. Howard Hughes Medical Institute, Chevy Chase, MD
3. Department of Ophthalmology, Shiley Eye Center, University of California-San Diego, San Diego, CA
4. Histology Core, National Institutes of Health, Bethesda, MD
5. Department of Ophthalmology, Peking University People's Hospital, Beijing, China
6. Epidemiology and Clinical Applications, National Eye Institute, National Institutes of Health, Bethesda, MD