Estrogen-induced apoptosis in a breast cancer model resistant to long-term estrogen withdrawal
Keywords: AI; aromatase inhibitor; ATAC; anastrozole, tamoxfen, alone or in combination; BCS; bovine calf serum; ER; estrogen receptor; E2; 17β-estradiol; FBS; fetal bovine serum; LTED; long-term estrogen deprived; MEM; minimum essential medium; PR; progesterone r