Correction to: Nature Medicine https://doi.org/10.1038/s41591-018-0053-3, published online 4 June 2018.

In the version of this article originally published, there was an error in Fig. 2n. The top line of the HR comparison chart originally was Atezo + bev vs sun. It should have been Atezo + bev vs atezo. The error has been corrected in the HTML and PDF versions of this article.