1 Division of Family Medicine and Primary Care, Stellenbosch University, Cape Town, South Africa.
2 Department of Population Health and Primary Care, Faculty of Medicine and Health Sciences, Norwich Medical School, University of East Anglia, Norwich, UK.
3 Nyaho Medical Centre, Accra, Ghana.
4 School of Public Health and Family Medicine, University of Malawi, Blantyre, Malawi.
5 Department of Community Medicine, College of Health Sciences, University of Zimbabwe, Harare, Zimbabwe.
6 Department of Family Medicine, Addis Ababa University, Addis Ababa, Ethiopia.
7 Department of Family Medicine, Faculty of Medicine, University of Calabar, Calabar, Nigeria.
8 Department of General Practice and Primary Health Care, University of Auckland, Auckland, New Zealand.