Abd-Alhussain, G.K. 2026. Effect of Metformin on Endometrial Thickness in Postmenopausal Breast Cancer Patients Receiving Tamoxifen. Al-Rafidain Journal of Medical Sciences ( ISSN 2789-3219 ). 10, 1 (Jan. 2026), 16–22. DOI:https://doi.org/10.54133/ajms.v10i1.2589.