Correction to: Nature Genetics https://doi.org/10.1038/s41588-018-0042-y, published online 29 January 2018.

In the HTML version of this article initially published, the author group ‘Deciphering Developmental Disorders Study’ appeared at the end of the author list but should have appeared in the fourth-to-last position. The error has been corrected in the HTML version of the article.