Characteristics of ER, PR, HER2 and Ki67 Expression in Invasive Breast Cancer Patients at RSUP Dr. Wahidin Sudirohusodo, Makassar 2021-2023. Faculty of Medicine, Tadulako University, P-ISSN: 2407-8441 and e-ISSN 2502-0749 2025, 11 (1), 155-161. https://doi.org/10.22487/htj.v11i1.1589.