1. Division of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine at UCLA (University of California, Los Angeles), Los Angeles
2. RAND Health, RAND Corporation
3. Department of Quality, Patient Safety and Risk Management, Los Angeles County and University of Southern California Medical Center, Los Angeles
4. Department of Ophthalmology, Los Angeles County and University of Southern California Medical Center, Los Angeles
5. Department of Anesthesiology, Los Angeles County and University of Southern California Medical Center, Los Angeles
6. Division of Geriatrics, David Geffen School of Medicine at UCLA, Los Angeles
7. University of Southern California Roski Eye Institute, Keck School of Medicine, Los Angeles
8. Ophthalmology and Eye Health Programs, Los Angeles County Department of Health Services, Los Angeles, California
9. Geriatric Research Education and Clinical Center, Greater Los Angeles Veterans Administration Healthcare System, Los Angeles, California