2026. Evaluation of the Cytotoxicity of a Circular SIRT1 Aptamer on MCF-7 and A549 Cell Lines and Its Impact on HIF-1α and VEGFR2 Expression. Al Mustansiriyah Journal of Pharmaceutical Sciences. 26, 3 (Sep. 2026), 369–387. DOI:https://doi.org/10.32947/ajps.v26i3.1407.