1. Department of Emergency Medicine Warren Alpert Medical School of Brown University Providence RI USA
2. International Medical Corps Washington DC USA
3. Center for Statistical Sciences Department of Biostatistics Brown University School of Public Health Providence RI USA
4. Warren Alpert Medical School of Brown University Providence RI USA
5. Ministry of Health Monrovia Liberia
6. College of Medicine and Allied Health Sciences University of Sierra Leone Freetown Sierra Leone