1. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health , Baltimore, Maryland , USA
2. Department of Psychology, University of Alabama at Birmingham , Birmingham, Alabama , USA
3. University of Alabama at Birmingham Alzheimer’s Disease Research Center , Birmingham, Alabama , USA
4. Department of Psychiatry and Behavioral Sciences, University of Washington , Seattle, Washington , USA
5. Department of Psychology, University of Alabama , Tuscaloosa, Alabama , USA
6. VA San Diego Healthcare System and Department of Psychiatry, University of California, San Diego School of Medicine , San Diego, California , USA
7. Department of Clinical and Health Psychology, University of Florida , Gainesville, Florida , USA
8. Department of Medicine and Pediatrics, Perelman School of Medicine, University of Pennsylvania , Philadelphia, Pennsylvania , USA
9. Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health , Baltimore, Maryland , USA
10. Johns Hopkins Alzheimer’s Disease Resource Center for Minority Aging Research , Baltimore, Maryland , USA
11. Department of Epidemiology, University of Pittsburgh , Pittsburgh, Pennsylvania , USA
12. Department of Medical Ethics and Policy, Perelman School of Medicine, University of Pennsylvania , Philadelphia, Pennsylvania , USA