[1] Johns Hopkins Univ, Sch Med, Div Gen Internal Med, 1830 East Monument St,Room 8060, Baltimore, MD 21287 USA
[2] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Epidemiol, Baltimore, MD USA
[3] Johns Hopkins Univ, Sch Med, Div Cardiol, Baltimore, MD USA
[4] Harbor UCLA Med Ctr, Div HIV Med, Torrance, CA 90509 USA
[5] Northwestern Univ, Feinberg Sch Med, Div Infect Dis, Chicago, IL 60611 USA
[6] Univ Pittsburgh, Grad Sch Publ Hlth, Dept Infect Dis & Microbiol, Pittsburgh, PA 15261 USA
[7] Johns Hopkins Univ, Sch Med, Div Endocrinol Diabet & Metab, Baltimore, MD USA