Authors: Yvonne Rydin; Ana Bleahu; Michael Davies; Julio D Dávila; Sharon Friel; Giovanni De Grandis; Nora Groce; Pedro C Hallal; Ian Hamilton; Philippa Howden-Chapman; Ka-Man Lai; C J Lim; Juliana Martins; David Osrin; Ian Ridley; Ian Scott; Myfanwy Taylor; Paul Wilkinson; James Wilson Journal: Lancet Date: 2012-05-30 Impact factor: 79.321