Retrospective Analysis of Regorafenib Efficiency in Treatment of Metastatic Colorectal Cancer—Experience of Two Polish Comprehensive Cancer Centers. - Grabiec, Magdalena; Raźniewska, Dominika; Kałużewski, Tadeusz; Krakowska, Magdalena; Radecka, Barbara; Potemski, Piotr (Journal of Clinical Medicine, 2026)