[1] Univ North Carolina Chapel Hill, Gillings Sch Global Publ Hlth, Dept Hlth Behav, Chapel Hill, NC USA
[2] Duke Univ, Ctr Hlth Policy & Inequal Res, Duke Global Hlth Inst, Durham, NC USA
[3] Univ Minnesota, Sch Publ Hlth, Div Epidemiol & Community Hlth, Minneapolis, MN USA
[4] Univ Penn, Sch Nursing, Family & Community Hlth, Philadelphia, PA 19104 USA
[5] Univ North Carolina Chapel Hill, Inst Global Hlth & Infect Dis, Chapel Hill, NC USA