Authors: Ian Sanne; Catherine Orrell; Matthew P Fox; Francesca Conradie; Prudence Ive; Jennifer Zeinecker; Morna Cornell; Christie Heiberg; Charlotte Ingram; Ravindre Panchia; Mohammed Rassool; René Gonin; Wendy Stevens; Handré Truter; Marjorie Dehlinger; Charles van der Horst; James McIntyre; Robin Wood Journal: Lancet Date: 2010-07-03 Impact factor: 79.321