Nat. Biotechnol. 29, 676 (2011); published online 5 August 2011; corrected after print 7 February 2012

In the version of this article initially published, only “ovarian and small cell lung cancer” were said to be among Avastin's current FDA-approved uses. In the US, Avastin is currently approved for advanced colon, non-small cell lung, glioblastoma and kidney cancers. FDA withdrew Avastin's breast cancer approval in November 2011 (Nat. Biotechnol. 30, 6 (2012). The error has been corrected in the HTML and PDF versions of the article.