1. Center for Public Health and Human Rights, Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
2. Department of Emergency Medicine, Johns Hopkins Medical Institute, Baltimore, MD, USA
3. Department of Community Health, University of Malawi, College of Medicine, Blantyre, Malawi
4. Centre for Global Health, Trinity College, Dublin, Ireland
5. Centre for the Development of People, Blantyre, Malawi