Repurposing Metformin in Precision Oncology: Mechanistic Insights, Biomarker-Guided Strategies, and Translational Imperatives. - Khan SS; Rangraze IR; Wali AF; Jhancy M; Attia RA; Elshamly HAH; Adam S; Elbeshbeishy RAM (Medicina (Kaunas, Lithuania), 2025)