Authors: Susan Buchbinder, Devan V. Mehrotra, Ann Duerr, Daniel W. Fitzgerald, Robin Mogg, David Li, Peter B. Gilbert, Javier R. Lama, Michael Marmor, Carlos del Rı́o, M. Juliana McElrath, Danilo R. Casimiro, Keith Gottesdiener, Jeffrey Chodakewitz, Lawrence Corey, Michael Robertson - The Lancet 2008 cited by 1,700