1. University of Leeds, Leeds Institute of Health Sciences, Nuffield Centre for International Health and Development, 10.31b, Worsley Building, Clarendon Way, Leeds LS2 9NL, UK
2. Hanoi University of Public Health, 1A Duc Thang, North Tu Liem, Hanoi, Vietnam
3. ARK Foundation, C4, House 6, Road 109, Gulshan 2, Dhaka-1212, Bangladesh
4. HERD International, PO Box 24144, Thapathali Height 11, Kathmandu, Nepal 44600