
Keywords: اداره غذا و داروی; 5-FU; 5-Fluorouracil; AI; aromatase inhibitor; BC; breast cancer; CDK; cyclin-dependent kinase; DHF; dihydrofolate; DHFR; dihydrofolate reductase; ER; estrogen receptor; FSH; follicle stimulating hormone; FDA; Food & Drug Administration; GnRH; gonadotroph