Özlem ŞAHİN, et al. “Diagnostic Value of Autoantibodies Against Citrullinated Peptide Antigens in Rheumatoid Arthritis: Comparison of Different Commercial Kits”. Archives of Rheumatology, vol. 26, no. 1, Jan. 2011, pp. 013-8, doi:10.5606/tjr.2011.003.