Validation of LC-MS/MS Method for Monitoring of Upadacitinib in Rat Plasma Samples. Journal of Pharmaceutical Negative Results, [S. l.], v. 13, n. 2, p. 102–107, 2022. Disponível em: https://pnrjournal.com/index.php/home/article/view/196.. Acesso em: 10 jun. 2026.