.Publisheru00e2 $ s note Springer Attribute remains neutral with regard to jurisdictional claims in published charts as well as institutional affiliations.This is actually a review of: Bhat-Nakshatri, P. et al. Single-nucleus chromatin availability and transcriptomic chart of breast tissues of women of assorted genetic ancestry. Nat. Med. https://doi.org/10.1038/s41591-024-03011-9 (2024 ).