1. Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor
2. Institute for Social Research, University of Michigan, Ann Arbor
3. University of Michigan Medical School, Ann Arbor
4. Wilmer Eye Institute, Johns Hopkins University, Baltimore, Maryland
5. Department of Epidemiology, Johns Hopkins University, Baltimore, Maryland
6. Disability Health Research Center, Johns Hopkins University, Baltimore, Maryland
7. Geriatric Medicine Division, Duke University School of Medicine, Durham, North Carolina
8. Geriatric Research Education and Clinical Center, Durham VA Health Care System, Durham, North Carolina
9. Department of Internal Medicine, University of Michigan, Ann Arbor
10. Department of Health Management and Policy, University of Michigan, Ann Arbor
11. Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, Michigan
12. University of Michigan School of Nursing, Ann Arbor