Cangara, H. (2017). EXPRESSION OF ESTROGEN RECEPTOR (ER), PROGESTERONE RECEPTOR (PR), AND HUMAN EPI- DERMAL GROWTH FACTOR RECEPTOR-2 (HER-2) IN GROWTH AND METASTASES OF BREAST CANCER. Nusantara Medical Science Journal, 1(3), 98–103. https://doi.org/10.20956/nmsj.v1i3.2227