The LancetVolume 378, Issue 9798, 1–7 October 2011, Page 1218Department of ErrorDepartment of ErrorAuthor links open overlay panelShow moreShareCitehttps://doi.org/10.1016/S0140-6736(11)61537-7Previous article in issueNext article in issueRecommended articlesCited by (0)View AbstractCopyright © 2011 Elsevier Ltd. All rights reserved.