[1] Univ Limpopo, Dept Family Med & Primary Hlth Care, Polokwane, South Africa
[2] Univ KwaZulu Natal, Dept Rural Hlth, Durban, South Africa
[3] Univ Cape Town, Primary Hlth Care, Cape Town, South Africa
[4] Univ Limpopo, Dept Publ Hlth, Polokwane, South Africa
[5] Univ KwaZulu Natal, Sch Hlth Sci, Durban, South Africa
[6] Univ Western Cape, Fac Community & Hlth Sci, Bellville, South Africa
[7] Univ Western Cape, Community Engagement Unit, Bellville, South Africa
[8] Univ KwaZulu Natal, Ctr Rural Hlth, Durban, South Africa