AL-UBAIDI, A.; MARROF AL-ANI, M.; AL-BIDRI, K. Comparism between Anti-RA33, Anti-CCP antibodies and Rheumatoid Factor in the Diagnosis of Rheumatoid Arthritis in Iraqi Patients. Journal of the Faculty of Medicine Baghdad, v. 55, n. 1, p. 64-67, 1 abr. 2013.