1. From the Department of Biostatistics (B.C.J., G.H., D.L.L.), University of Alabama at Birmingham
2. Department of Medicine, Columbia University, New York City, NY (D.E.A., D.S.)
3. Department of Population Health Sciences, University of Utah, Salt Lake City (A.P.B.)
4. Department of Epidemiology (J.N.B., P.M.), University of Alabama at Birmingham
5. Department of Population Health Sciences, New York University School of Medicine, NY (M.B., J.K., G.O.)
6. Department of Medicine, University of Mississippi, Jackson (D.C., M.S.)
7. Department of Medicine, University of Vermont, Burlington (T.B.P.)
8. Geriatrics Division, Department of Internal Medicine, University of Utah School of Medicine, and George E. Wahlen Veterans Affairs Medical Center, Geriatric Research, Education and Clinical Center, Salt Lake City (M.A.S.)
9. Department of Epidemiology, Tulane University, New Orleans, LA (P.K.W.).