Department of Clinical Pathology;
Faculty of Medicine;
Sohag University;
Sohag;
Egypt;
Department of Rheumatology and Reha- bilitation;
Faculty of Medicine;
Sohag University;
Sohag;
Egypt.;
Anti-Cyclic; Citrullinated; Peptide; (Anti-CCP2); Anti-Citrullinated; Vimentin; Antibody; (Anti-CMV); Rheumatoid; Arthritis; (RA);