Correction to: Nature Biotechnology https://doi.org/10.1038/s41587-020-0525-0, published online 25 May 2020.

In the version of this article initially published online, the data points and the text label FB/MB/HB in Fig. 3d were shifted and mis-scaled relative to the dashed lines and other figure elements. The error has been corrected in the print, PDF and HTML versions of the article.