[1] Trinity Coll Dublin, Ctr Global Hlth, Dublin, Ireland
[2] Addis Ababa Univ, Dept Community Hlth, Addis Ababa, Ethiopia
[3] Univ Malawi, Bioeth & Community Hlth, Coll Med, Zomba, Malawi
[4] Univ Ibadan, Dept Sociol, Ibadan, Nigeria
[5] Makerere Univ, Dept Organisat & Social Psychol, Kampala, Uganda
[6] Makerere Univ, Dept Epidemiol & Biostat, Sch Publ Hlth, Kampala, Uganda
[7] Human Sci Res Council South Africa, Social Aspects HIV AIDS & Hlth Programme, Pretoria, South Africa
[8] Trinity Coll Dublin, UK Cochrane Ctr, Dublin, Ireland
[9] Trinity Coll Dublin, Sch Nursing & Midwifery, Dublin, Ireland
[10] Harvard Univ, Dept Global Hlth & Populat, Cambridge, MA 02138 USA
[11] Columbia Univ, Clin Populat & Family Hlth, Mailman Sch Publ Hlth, New York, NY 10027 USA
[12] Council Hlth Res Dev Geneva, Geneva, Switzerland
[13] Trinity Coll Dublin, Sch Psychol, Dublin, Ireland