Nat. Biotechnol. 10.1038/nbt.4183; corrected online 31 July 2018

In the version of this article initially published online, the text “Beth Israel Deaconess Medical Center/Dana Farber Cancer Institute (BIDMC/DFCI)” was inserted into the last sentence in the right-hand column of p.10, beginning “It is worth noting....” . In addition, on p.2, the acronym for The Cancer Genome Atlas was given as TGCA, rather than TCGA; and on p. 3, UUTR should have been defined, as University of Utrecht, the Netherlands. Finally, ref. 48 was cited in the Online Methods after “4N_Xu protocol was performed as previously described35”; this extra citation has been deleted. The errors have been corrected for the print, PDF and HTML versions of this article.