1. From the Department of Medicine (U.K.A.S., T.L.E., E.J., M.W., S.F., E.K.K., W.J.B., L.L.), Department of Pathology, Microbiology, and Immunology (U.K.A.S., S.F.), and Department of Radiology and Radiological Sciences (U.K.A.S.), Vanderbilt University Medical Center, Nashville, TN; International Epidemiology Institute, Rockville, MD (H.M., W.J.B.); School of Osteopathic Medicine, University of Medicine and Dentistry, Newark, NJ (M.G.W.); and Department of Medicine, University of Cape Town, Cape Town...