AJCC	American Joint Committee on Cancer
CI	Confidence interval
CNBs	Diagnostic core needle biopsies
H&E	Hematoxylin and eosin
HER2+HR−	HER2 enriched
HER2+HR+	Luminal B HER2 positive
HUB	Hospital Universitari de Bellvitge
ICO	Institut Català d’Oncologia
IE&S	Intraepithelial and stromal
IHQ	Immunohistochemistry
L&PC	Lymphocyte and plasma cell
LA	Luminal A
LB	Luminal B HER2 negative
NACT	Neoadjuvant chemotherapy (NACT)
NST	Of no special type
OR	Odds ratio
PC	Plasma cell-rich
pCR	Pathologic complete response
RCB	Residual Cancer Burden
SD	Standard deviation
TILs	Tumor-infiltrating lymphocytes
TN	Triple negative
UFM	Breast Functional Unit