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