1. Health Economics Unit, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
2. Self Employed Industrial and Organizational Psychologist and Time to Think coach, Cape Town, South Africa
3. School of Public Health, University of the Western Cape, Cape Town, South Africa
4. Health Policy and Systems Division, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa and
5. Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK