[1] Washington Univ, Sch Med St Louis, Dept Med, Div Infect Dis, Campus Box 8051,4523 Clayton Ave, St Louis, MO 63110 USA
[2] Washington Univ, Sch Med St Louis, Dept Med, Div Infect Dis,Med, Campus Box 8051,4523 Clayton Ave, St Louis, MO 63110 USA
[3] Washington Univ, Sch Med St Louis, Dept Med, Div Med Educ, St Louis, MO USA
[4] Univ Pittsburgh, Sch Med, Dept Med, Pittsburgh, PA 15213 USA
[5] VA Pittsburgh Healthcare Syst, Clin Therapeut, Ctr Hlth Equ Res & Promot, Pittsburgh, PA USA
[6] Washington Univ, Sch Med, Ctr Populat Hlth Informat, St Louis, MO 63110 USA
[7] Washington Univ, Sch Med St Louis, Div Gen Med Sci, Dept Med,Med, St Louis, MO 63110 USA
[8] Washington Univ, Brown Sch, Publ Hlth, St Louis, MO 63110 USA
[9] Barnes Jewish Hosp, St Louis, MO 63110 USA