Iman Najat Ali, and Najat Jabbar Ahmed Berwary. “Interleukin-20 Gene Polymorphism and Serum Levels of Interleukin-20 and Interleukin-23 in Rheumatoid Arthritis ”. Diyala Journal of Medicine, vol. 29, no. 1, Oct. 2025, pp. 74-88, doi:10.26505/djm.v29i1.1451.