“Antitumor Activity of New Methylpyrazolotriazine and Pyrazolobenzotriazine Derivatives Tested on MCF-7, MDA-MB-231, and BT-474 Breast Cancer Cell Lines” (2026) Voprosy onkologii, 72(3), p. OF-2446. doi:10.37469/0507-3758-2026-72-3-OF-2446.