Nat. Biotechnol. 34, 904–908 (2016); published online 8 September 2016; corrected after print 13 October 2016

In the version of this article initially published, on p.908, middle column, a device referred to as a “vagal nerve” stimulator should have been called a “carotid baroreceptor” stimulator. The error has been corrected in the HTML and PDF versions of the article.