1. Department of Epidemiology (S.R.H., T.R.A., J.S.F., B.M.P.), University of Washington, Seattle.
2. Department of Medicine (P.N.J., J.S.F., B.M.P.), University of Washington, Seattle.
3. Cardiovascular Division, Department of Medicine, University of Minnesota, Minneapolis (L.Y.C.).
4. Division of Cardiology, Department of Medicine, Johns Hopkins University, Baltimore, MD (W.S.P.).
5. Epidemiological Cardiology Research Center, Wake Forest University School of Medicine, Winston-Salem, NC (E.Z.S.).
6. Department of Biostatistics (R.A.K.), University of Washington, Seattle.
7. Department of Health Services (B.M.P), University of Washington, Seattle.
8. Kaiser Permanente Health Research Institute, Seattle, WA (B.M.P.).