Mesut Çolak, Namık Kemal Bingöl, Oğuz Ayhan, Şenel Avcı, and Vedat Bulut. 2001. “SERUM COPPER, ZINC AND SELENIUM LEVELS IN RHEUMATOID ARTHRITIS”. Archives of Rheumatology 16 (2):066-071. http://anadolupsikiyatri.net/index.php/pub/article/view/44.