1. Department of Medicine (Geriatrics Division) and Department of Psychiatry and Behavioral Sciences Duke University School of Medicine Durham North Carolina USA
2. Duke Center for the Study of Aging and Human Development Duke University School of Medicine Durham North Carolina USA
3. Department of Neurology University of Kansas Medical Center Fairway Kansas USA
4. Department of Neurological Sciences Rush University Medical Center Chicago Illinois USA
5. Department of Health Psychology University of Missouri Columbia Missouri USA
6. Department of Neurology University of Texas Health Science Center at San Antonio San Antonio Texas USA
7. Cognitive Neuroscience Division Taub Institute for Research on Alzheimer's Disease and Gertrude H. Sergievsky Center Columbia University New York New York USA
8. Department of Neurology, Massachusetts General Hospital Harvard Medical School Boston Massachusetts USA
9. Department of Epidemiology National Alzheimer's Coordinating Center University of Washington Seattle Washington USA
10. Department of Neurology University of Pennsylvania Perelman School of Medicine Philadelphia, Pennsylvania Pennsylvania USA