[1] Human Sci Res Council, Hlth Syst Res Unit, Social Aspect HIV AIDS & Hlth, Pretoria, South Africa
[2] Univ Orange Free State, Dept Psychol, Bloemfontein, South Africa
[3] Homerton Univ Hosp, NHS Fdn Trust, Ctr Study Sexual Hlth & HIV, London, England
[4] Howard Univ, HIV AIDS Pharmaceut Care Program, Pretoria, South Africa