1. From the University of California, San Francisco, San Francisco, CA (V.A.C., L.L.C., J.K., M.W.W.); the Veterans Affairs Medical Center, San Francisco, CA (V.A.C., L.L.C., M.W.W.); the University of California, Davis, California (B.R., C.C.D., M.H.B., O.C.); the University of Southern California, Los Angeles, CA (H.C., N.S., W.M., H.N.H., M.Y.); and the University of California, Berkeley, CA (W.J.J.).