1. Department of Obstetrics Gynecology and Reproductive Sciences (E.T.W.), University of California, San Francisco, San Francisco, California 94115
2. Department of Cardiology (I.A.K.), Kaiser Permanente San Francisco Medical Center, San Francisco, California 94115
3. Departments of Medicine (S.J.S.), Illinois 60611
4. Preventive Medicine (M.L.D.), Northwestern University, Chicago, Illinois 60611
5. Departments of Epidemiology (P.J.S.), Minnesota 55454
6. Medicine (S.H.K.), University of Minnesota, Minneapolis, Minnesota 55454
7. Department of Medicine (O.D.W.), University of Alabama, Birmingham, Alabama 35294
8. Department of Medicine (D.S.), University of Washington, Seattle, Washington 98101
9. Department of Medicine (K.B.-D.), University of California–San Francisco, San Francisco, CA 94110