Elfasakhany, F.M., Alqahtani, M.S., Elfasakhany, A.F. and Elguindy, A.M.A. 2025. Assessment of Interleukin-21 Gene Polymorphisms and Protein Level in Rheumatoid Arthritis among Egyptians. Open Access Macedonian Journal of Medical Sciences. 13, 1 (Mar. 2025), 55–60. DOI:https://doi.org/10.3889/oamjms.2025.12003.