1. Warren Alpert Medical School of Brown University, Providence, Rhode Island
2. Stein Eye Institute, David Geffen School of Medicine, UCLA (University of California, Los Angeles)
3. Department of Epidemiology, Fielding School of Public Health, UCLA
4. Section of Ophthalmology, Veterans Affairs Medical Center, Providence, Rhode Island
5. Ophthalmology Division, West Los Angeles Veterans Affairs Medical Center, Los Angeles, California
6. Department of Biostatistics, Fielding School of Public Health, UCLA
7. American Academy of Ophthalmology, San Francisco, California