Patel Vikram, Boyce Niall, Collins Pamela Y, Saxena Shekhar, Horton Richard
Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, UK.
Lancet. 2011 Oct 22;378(9801):1441-2. doi: 10.1016/S0140-6736(11)61385-8. Epub 2011 Oct 16.