Correction to: Nature Reviews Bioengineering https://www.nature.com/articles/s44222-023-00090-0. Published 24 July 2023.

In the version of the article originally published, in the section “Maternal and foetal monitoring,” the text “For example, the FDA-cleared indication awarded to INVU specifies its use in a singleton pregnancy of at least 32 weeks for antepartum monitoring” has been clarified from the original description in the HTML and PDF versions of the article.