Nat. Genet. 48, 624–633 (2016); published online 18 April 2016; corrected after print 27 June 2016

In the version of this article initially published, the following co-authors and their affiliations were incorrectly omitted from the author list: Gudmar Thorleifsson, Sven Bergmann, Gyda Bjornsdottir, David C. Liewald, John M. Starr, Kari Stefansson and Unnur Thorsteinsdottir. In addition, the middle initial for co-author Andreas J. Forstner was also omitted. The errors have been corrected in the HTML and PDF versions of the article.