JAAFAR, Rozheen; EISSA, Adil. Effect of reduced folate carrier gene polymorphism (G80A) on the methotrexate level in patients with rheumatoid arthritis and it’s relation to the disease activity. Science Journal of University of Zakho, [S. l.], v. 14, n. 1, 2026. DOI: 10.25271/sjuoz.2026.14.1.1700. Disponível em: https://sjuoz.uoz.edu.krd/index.php/sjuoz/article/view/1700. Acesso em: 14 jan. 2026.