... peptide antibody (anti-CCP) by enzyme-linked immuno-sorbent assay (ELISA) (Inova Diagnostics, San Diego, CA,USA) and CRP by phyCardioPhase high-sensitivity CRPnefelometri (Dade Behring, now part ... Germany). The erythrocytesedimentation rate was analyzed by the Westergren method atthe time of examination, whereas the other biological markerswere analyzed from frozen serum or plasma anti-cyclic ... Rheumatology, Diakonhjemmet Hospital, Box 23 Vindern, N-0319 Oslo, Norway2Faculty of Medicine, University of Oslo, Pb1018 0316 Oslo, Norway3Aker University Hospital, Division of Cardiology, University...