1. Health, Organisation, Policy and Economics (HOPE), Centre for Primary Care and Health Service Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.
2. Department of Global Health and Development, Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London, UK.
3. School of Politics and International Studies (POLIS), University of Leeds, Leeds, UK.
4. Department of Economics, University of Bath, Bath, UK.
5. Training and Research Support Centre (TARSC), Harare, Zimbabwe.
6. Centre for Health Policy, Institute of Global Health Innovation, Imperial College London, London, UK.