[1] Tulane Univ, Sch Publ Hlth & Trop Med, Tulane Prevent Res Ctr, Dept Epidemiol, New Orleans, LA 70118 USA
[2] Tulane Univ, Sch Publ Hlth & Trop Med, Dept Epidemiol, New Orleans, LA USA
[3] Tulane Univ, Sch Publ Hlth & Trop Med, Dept Global Community Hlth & Behav Sci, New Orleans, LA USA
[4] Univ Minnesota, Sch Publ Hlth, Div Epidemiol & Community Hlth, Minneapolis, MN USA
[5] Washington Univ, Brown Sch, Prevent Res Ctr St Louis, St Louis, MO 63110 USA
[6] Univ Massachusetts, Med Sch, Div Prevent & Behav Med, Worcester, MA 01605 USA
[7] Univ Colorado, Boulder, CO 80309 USA