1. Imperial College London, London, United Kingdom;
2. Obstetrics and Gynaecology Department, Chelsea and Westminster Hospital, London, United Kingdom;
3. The Economist, London, United Kingdom;
4. Faculty of History, University of Oxford, Oxford, United Kingdom;
5. Harvard School of Public Health, Harvard University, Cambridge, Massachusetts;
6. World Health Organization, Geneva, Switzerland; and
7. University of Bern, Bern, Switzerland.