Nat. Biotechnol. 27, 586–587 (2009); published online 8 July 2009; corrected after print 8 October 2009

In the version of this article initially published, on page 587, left column, last paragraph, it states incorrectly that GeneDX holds a patent to certain mutations in the connexin 26 gene related to keratitis-ichthyosis-deafness syndrome. GeneDX does not own that patent. The error has been corrected in the HTML and PDF versions of the article.