1. Global Surgery Policy Unit, LSE Health, London School of Economics and Political Science , Cowdray House 1.12, Houghton Street, London WC2A 2AE, United Kingdom
2. Health Policy Research Group, Department of Pharmacology and Therapeutics, University of Nigeria Enugu Campus (UNEC) , Enugu, Nigeria
3. Department of Obstetrics and Gynaecology, Faculty of Medical Sciences, College of Medicine, University of Nigeria, Ituku-Ozalla , Enugu, Nigeria
4. School of Medicine, University Hospital of Wales , Cardiff CF14 4XN, United Kingdom
5. Royal College of Surgeons of England , London, United Kingdom
6. Center for Global Development Europe , London SW1P 3SE, United Kingdom
7. Department of Health Policy, London School of Economics and Political Science , London WC2A 2AE, United Kindom