[1] Rollins Sch Publ Hlth, Dept Behav Sci & Hlth Educ, Atlanta, GA 30322 USA
[2] Emory Univ, Sch Med, Dept Pediat, Div Infect Dis Epidemiol & Immunol, Atlanta, GA 30322 USA
[3] Emory Atlanta Ctr AIDS Res, Atlanta, GA USA
[4] Emory Univ, Nell Hodgson Woodruff Sch Nursing, Atlanta, GA 30322 USA
[5] Univ Alabama Birmingham, Dept Pediat, Birmingham, AL USA
[6] Univ Alabama Birmingham, Sch Publ Hlth, Dept Hlth Behav, Birmingham, AL 35294 USA