Chemy Wiryawan Cahyono and Selamat Budijitno, “Ki-67 and HER2-Negative Status as Predictive Factors for Recurrence and Progression in Breast Cancer: Implications for Treatment Strategies”, Bioscmed, vol. 9, no. 5, pp. 1365–1376, Feb. 2025, doi: 10.37275/bsm.v9i5.1266.