[1] Boston Univ, Sch Med, Boston Med Ctr, Clin Addict Res & Educ Unit,Sect Gen Internal Med, Boston, MA 02118 USA
[2] Boston Univ, Sch Med, Boston Med Ctr, Dept Med,Sect Infect Dis, Boston, MA 02118 USA
[3] Boston Univ, Sch Publ Hlth, Dept Biostat, Boston, MA USA
[4] Boston Univ, Sch Publ Hlth, Biostat & Epidemiol Data Analyt Ctr, Boston, MA USA
[5] Univ Pittsburgh, Sch Med, Ctr Res Healthcare, Dept Med,Div Gen Internal Med, Pittsburgh, PA USA
[6] Emory Univ, Sch Med, Dept Med, Div Infect Dis, Atlanta, GA USA
[7] Boston Univ, Sch Publ Hlth, Dept Community Hlth Sci, Boston, MA USA
[8] Harborview Med Ctr, Dept Med, Div Gen Internal Med, Boston, MA USA
[9] Univ Washington, Sch Med, Boston, MA USA