Sundewall Jesper, Swanson R Chad, Betigeri Arvind, Sanders David, Collins Téa E, Shakarishvili George, Brugha Ruairi
Division of Global Health (IHCAR), Stockholm SE-171 77, Sweden.
Lancet. 2011 Apr 9;377(9773):1222-3. doi: 10.1016/S0140-6736(10)60679-4.