[1] Yale Sch Publ Hlth, Global Hlth Leadership Initiat, New Haven, CT 06510 USA
[2] Yale Sch Ptubl Hlth, Dept Hlth Policy & Management, New Haven, CT 06510 USA
[3] Natl Dept Hlth, Pretoria, South Africa
[4] Project Last Mile, Pretoria, South Africa
[5] Yale Sch Med, Infect Dis Sect, Dept Med, AIDS Program, New Haven, CT USA
[6] Yale Sch Publ Hlth, Dept Chron Dis Epidemiol, New Haven, CT USA