Correction to: Nature Medicine https://doi.org/10.1038/nm.4439, published online 11 December 2017.

In the version of this article originally published, the color key in Fig. 1a was wrong. In the Cytogenetics key, the box over t(8;21) originally was green. It should have been red, matching the color of the sections of the pie graphs below the key that were labeled with 15% and 19%.