Kadir Yıldırım, et al. “ANTIOXIDANT ENZYMES CAPACITY IN PATIENTS WITH RHEUMATOID ARTHRITIS: THE RELATIONSHIP WITH DISEASE ACTIVITY SCORE”. Archives of Rheumatology, vol. 19, no. 2, June 2004, pp. 081-6, http://anadolupsikiyatri.net/index.php/pub/article/view/133.