A HPLC-UV Method for the Quantification of Regorafenib in Tumor . Journal of Cancer Research Updates, [S. l.], v. 9, n. 1, p. 1–5, 2020. DOI: 10.30683/1929-2279.2020.09.01. Disponível em: https://neoplasiaresearch.com/index.php/jcru/article/view/533. Acesso em: 18 oct. 2025.