Nat. Biotechnol. 36, 126–127 (2018); published online 6 February 2018; corrected after print 22 February 2018

In the version of this article initially published, the statement that CIRM's Transition Committee “considered requesting $5 billion (or a total of $10 billion) from the electorate” should have read the “Committee heard a presentation for another $5-billion ($10-billion with interest) citizen-sponsored proposition.” The error has been corrected in the HTML and PDF versions of the article.