Iman Najat Ali and Najat Jabbar Ahmed Berwary (2025) “Interleukin-20 Gene Polymorphism and Serum Levels of Interleukin-20 and Interleukin-23 in Rheumatoid Arthritis ”, Diyala Journal of Medicine, 29(1), pp. 74–88. doi: 10.26505/djm.v29i1.1451.