1. Department of Neurology; Layton Aging and Alzheimer's Disease Center, Oregon Health & Science University; Portland OR
2. Oregon Center for Aging and Technology (ORCATECH); Oregon Health & Science University; Portland OR
3. Department of Neurology; Michigan Alzheimer's Disease Center, University of Michigan; Ann Arbor MI
4. Department of Biostatistics; University of Michigan; Ann Arbor MI
5. Department of Psychology; University of Michigan; Ann Arbor MI
6. Department of Psychiatry and Behavioral Sciences and Center on Aging; University of Miami, Miller School of Medicine; Miami FL
7. Portland Veterans Affairs Medical Center; Portland OR