1 Department of Global Health and Development, Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine, London WC1H 9SH, UK. Electronic address: gorik.ooms@lshtm.ac.uk.
2 Center for the Study of Equity and Governance in Health Systems, Guatemala City, Guatemala.
3 Center for Health, Human Rights and Development, Kampala, Uganda.
4 James P Grant School of Public Health at BRAC University, Dhaka, Bangladesh.
5 Department of Public Health, Institute of Tropical Medicine, Antwerp, Belgium.
6 Institute of Public Health, Heidelberg University Hospital, Heidelberg, Germany.