1. Department of Internal Medicine and Cognitive Health Services Research Program (D.A.L.), University of Michigan, Ann Arbor.
2. Department of Neurology and Stroke Program (D.A.L.), University of Michigan, Ann Arbor.
3. Institute for Healthcare Policy and Innovation (D.A.L.), University of Michigan, Ann Arbor.
4. Department of Neurology, Wake Forest School of Medicine, Winston-Salem, NC (P.W.D.).
5. Division of Research, Kaiser Permanente Northern California, Oakland, CA (M.N.N.-H.).
6. Department of Neurology, Kaiser Permanente Walnut Creek Medical Center, CA (M.N.N.-H.).
7. Department of Population Health and Department of Medicine, New York University Grossman School of Medicine, NY (O.G.O.).