Correction to: Nature Medicine https://doi.org/10.1038/nm.2100, published online 14 February 2010.

In the originally published version of this article, the micrograph depicting ‘small control lesion’ ki67 staining shown in Fig. 1g was incorrect. The original data was located, and this error has now been corrected below in Fig. 1.

Corrected Fig. 1g