1 Nossal Institute for Global Health, Melbourne School of Population and Global Health, The University of Melbourne, Australia.
2 Hanoi University of Public Health, Hanoi, Viet Nam.
3 Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, United Kingdom.
4 Research and Development Division, Ghana Health Service, Accra, Ghana.
5 Nossal Institute for Global Health, Melbourne School of Population and Global Health, The University of Melbourne, Australia. Electronic address: [email protected].