1. Faculty of Medicine, Brighton and Sussex Medical School, Brighton, UK
2. Faculty of Medicine, Riga Stradinš University, Riga, Latvia
3. Faculty of Medicine, Queen Mary University of London, London, UK
4. Faculty of Medicine, University College London, London, UK
5. Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
6. Tropical Institute of Community Health and Development, Great Lakes University of Kisumu, Nairobi, Kenya