Le MK, Odate T, Kawai M, Oishi N, Kondo T. Investigating the role of core needle biopsy in evaluating tumor-stroma ratio (TSR) of invasive breast cancer: a retrospective study. Breast Cancer Res Treat. 2023 Jan;197(1):113-121. doi:10.1007/s10549-022-06768-0. Epub 2022 Nov 6. PMID: 36335529.