1 WHO Collaborating Center for Pharmaceutical Policy, Department of Global Health, Boston University School of Public Health, Boston, MA 02118, USA. Electronic address: wak@bu.edu.
2 Boston University School of Public Health, Boston, MA, USA.
3 Health Action International Global, Amsterdam, Netherlands.
4 Division of Tropical and Humanitarian Medicine, Faculty of Medicine, University of Geneva and Geneva University Hospitals, Geneva, Switzerland.