Oxman Andrew D, Bjørndal Arild, Becerra-Posada Francisco, Gibson Mark, Block Miguel Angel Gonzalez, Haines Andy, Hamid Maimunah, Odom Carmen Hooker, Lei Haichao, Levin Ben, Lipsey Mark W, Littell Julia H, Mshinda Hassan, Ongolo-Zogo Pierre, Pang Tikki, Sewankambo Nelson, Songane Francisco, Soydan Haluk, Torgerson Carole, Weisburd David, Whitworth Judith, Wibulpolprasert Suwit
Norwegian Knowledge Centre for the Health Services, Oslo, Norway.
Lancet. 2010 Jan 30;375(9712):427-31. doi: 10.1016/S0140-6736(09)61251-4.