Quantification of Methotrexate by Liquid Chromatography Ultraviolet Detection for Routine Monitoring of Plasma Levels: Quantification of Methotrexate. Biological Sciences - PJSIR, [S. l.], v. 52, n. 3, p. 154–157, 2009. Disponível em: https://www.biostaging.pjsir.org/index.php/biological-sciences/article/view/540. Acesso em: 21 mar. 2026.