MKI67 and breast cancer: 3MST expression data obtained from BC patients has been stratified according to different patient features such as age (< 40 or ≥ 40 years old), menopausal status (pre-menopause or post- menopause), expression level of Ki-67 (high or low), tumor size (< 5 or ≥ 5 cm) and molecular subtype.