Research BMJ 2024; 384 doi: https://doi.org/10.1136/bmj-2023-077039 Cite this as: BMJ 2024;384:e077039 Karoline Freeman, senior research fellow1, David Jenkinson, senior research fellow1, Karen Clements, breast cancer research manager2, Matthew G Wallis, consultant radiologist3, Sarah E Pinder, professor of breast pathology45, Elena Provenzano, lead consultant breast pathologist6, Hilary Stobart, patient representative7, Nigel Stallard, professor of medical statistics8, Olive Kearins,...