Correction to: Nature Biotechnology https://doi.org/10.1038/s41587-020-0508-1, published online 11 May 2020.

In the version of this article initially published online, a plot from a different dataset was substituted for the left panel of Fig. 2b subsequent to peer review. The conclusions of the study are unaffected. The error has been corrected in the print, PDF and HTML versions of the article.

Fig. 2: Original and corrected.
figure 1

Left panel, Fig. 2b.