1. Department of Medicine (A.A.), California, 94107
2. University of California, San Francisco, and San Francisco Coordinating Center (P.M.C., L.-Y.L., S.R.C.), California, 94107
3. California Pacific Medical Center Research Institute (P.M.C, L.-Y.L., S.R.C.), San Francisco, California, 94107
4. Amgen Inc., (T.P.D., P.S.A.) Thousand Oaks, California 91320
5. Department of Epidemiology (J.A.C.), Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
6. Minneapolis Veterans Affairs Medical Center (K.E.E.), University of Minnesota, Minneapolis, Minnesota 55417