1. Research, George Institute for Global Health , 308, Elegance Tower, Plot No 8, Jasola District Centre, New Delhi 110025, India
2. Faculty of Medicine, University of New South Wales , High St, Kensington, NSW 2052, Australia
3. Global Health Division, Bill & Melinda Gates Foundation , 500 Fifth Avenue North, Seattle, WA 98109, United States
4. Global Health and Development, London School of Hygiene and Tropical Medicine , Keppel St, WC1E 7HT, United Kingdom