[1] Navrongo Hlth Res Ctr, Navrongo, Ghana
[2] Univ Toronto, Ctr Bioeth, Dept Publ Hlth Sci, Toronto, ON M5S 1A1, Canada
[3] Ctr AIDS Programme Res S Africa, Durban, South Africa
[4] Univ KwaZulu Natal, Howard Coll, Sch Law, Durban, South Africa
[5] Univ Toronto, Ctr Bioeth, Sunnybrook Hlth Sci Ctr, Primary Care Res Unit, Toronto, ON M5S 1A1, Canada
[6] Univ Toronto, Ctr Bioeth, Dept Family Commun Med & Public Hlth Sci, Toronto, ON M5S 1A1, Canada
[7] Univ Toronto, Massey Coll, McLaughlin Rotman Ctr Global Hlth, Dept Publ Hlth Sci, Toronto, ON, Canada
[8] Univ Toronto, McLaughlin Rotman Ctr Global Hlth, Dept Med, Toronto, ON, Canada
[9] Ctr AIDS Programme Res S Africa, Vulindlela, South Africa
[10] Ctr Res Inner City Hlth, Toronto, ON, Canada
[11] Ctr Global Hlth Res, Toronto, ON, Canada
[12] St Michaels Hosp, Li Ka Shing Knowledge Inst, Keenan Res Ctr, Toronto, ON, Canada