Hofheinz RD, Bruix J, Demetri GD, Grothey A, Marian M, Bartsch J, Odom D. Effect of regorafenib in delaying definitive deterioration in health-related quality of life in patients with advanced cancer of three different tumor types. Cancer Manag Res. 2021 Jul 12;13:5523-33. doi: 10.2147/CMAR.S305939