In the penultimate story of Lucina (Arch Dis Child 2010;95:1072) the source of the study was inadvertently omitted. The first sentence should read: “In order to guide efforts to achieve Millennium Development Goal 4 (a two-thirds reduction in under-5s mortality between 1990 and 2015) yearly estimates of global mortality in this age group are published (New England Journal of Medicine 2010;362:2185–93).