1. From the Department of Medicine, University of California, Los Angeles (W.D.H); the Department of Biostatistics, Harvard School of Public Health, Boston (D.M.F., W.H.); the Division of AIDS, National Institute of Allergy and Infectious Diseases, Bethesda, Md. (J.F., M.E.P.); Frontier Science Technology and Research Foundation, Amherst, N.Y. (C.K.); the Department of Medicine, University of Cincinnati School of Medicine, Cincinnati (P.T.F.); the Department of Medicine, University of Southern California,...