1. Centre for Conflict & Health Research, King’s College London , London WC2R 2LS, UK
2. Department of Midwifery and Child Health, University of Hull , Hull HU6 7RX, UK
3. Medical Operational Support Group , York YO32 5SW, UK
4. Director, Griffith Institute, Director, DoD Medical Ethics Center (DMEC), Uniformed Services University (USU) , Bethesda, MD 20814-4799, USA