TY - JOUR T1 - Clinicopathological Characteristics of Patients with HR-Positive/HER2-Negative Metastatic Breast Cancer Experiencing Early Progression Within 6 Months of CDK4/6 Inhibitor Therapy Y1 - 2026 PY - 2026 DA - 2026 N1 - doi:269433 T2 - EURASIAN JOURNAL OF MEDICIAL INVESTIGATION JF - EURASIAN JOURNAL OF MEDICIAL INVESTIGATION JO - EJMI SP - 433 EP - 440 VL - 10 IS - 3 SN - M3 - doi:269433 UR - https://dx.doi.org/10.14744/ejmi.269433 Y2 - 2026 ER -