Sahatçiu-MekaV., RexhepiS., Manxhuka-KërliuS. and RexhepiM. (2010) “Extra-Articular Manifestations of Seronegative and Seropositive Rheumatoid Arthritis”, Bosnian Journal of Basic Medical Sciences, 10(1), pp. 26-31. doi: 10.17305/bjbms.2010.2729.