Tanaka N, Hirano A, Hattori A, Ogura K, et al. Effect of adjuvant chemotherapy in patients with ER + /HER2- breast cancer,
assessed by propensity score matching: significance of nuclear grade and nodal
status. Breast Cancer 2020 Jun 26. pii: 10.1007/s12282-020-01125.
PMID: 32592141