1 ECOHOST, Centre for Health and Social Change, Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK adrianna.murphy@lshtm.ac.uk.
2 United Nations High Commissioner for Refugees (UNHCR), Lebanon.
3 ECOHOST, Centre for Health and Social Change, Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK.