Nat. Genet. 45, 1293–1299 (2013); doi:10.1038/ng.2759; published online 22 September 2013; corrected after print 30 October 2013

In the version of this article initially published, the discussion of cited reference 52 should also have noted that the work “reported accumulation of additional somatic mutations (including single cases of SMC3 and EZH2 mutation) during progression from TAM to DS-AMKL.” The error has been corrected in the HTML and PDF versions of the article.