1. Department of Medicine, University of California, San Francisco (K.M., H.K., J.-M.S., G.K.S., V.W.T., M.J.W., G.A.L., C.G., M.S.), San Francisco, California 94143
2. San Francisco General Hospital (K.M., H.K., J.-M.S., G.K.S., V.W.T., M.J.W., M.S.), San Francisco, California 94110
3. Department of Basic Sciences, Touro University (J.-M.S.), Vallejo, California 94592
4. Amgen Inc. (A.M.D.), Thousand Oaks, California 91320
5. San Francisco Veterans Affairs Medical Center (G.A.L., C.G.), San Francisco, California 94121