Jassim, Nizar Abdul lateef, et al. “Carotid Intima-Media Thickness in Rheumatoid Arthritis Detected by Doppler Ultrasound”. AL-Kindy College Medical Journal, vol. 5, no. 1, June 2009, pp. 57-61, https://jkmc.uobaghdad.edu.iq/index.php/MEDICAL/article/view/725.