NAGULU, M.; UDAY KIRAN, V.; RAMA KRISHNA, D. HPLC Method of Determination of Methotrexate in Human Serum. Asian Journal of Chemistry, [S. l.], v. 21, n. 9, p. 6845–6851, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/12156. Acesso em: 21 jul. 2024.