Purnawaty A, Hamdani W, Ganda ID. Relationship of Grade, Intrinsic Subtype and Clinical Response to Neoadjuvant Chemotherapy In Breast Cancer. IJSBAR. 2018;37(1):34-42. Accessed December 15, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/8579