DOES TESTING FOR CIRCULATING AUTOANTIBODIES AGAINST DISEASE-RELEVANT CITRULLINATED ANTIGENS ADD VALUE TO THE CCP2 ASSAY IN DIAGNOSING RA AMONG EARLY UNDIFFERENTIATED ARTHRITIS PATIENTS? - Pratt, A; Charles, P; Choudhury, M; Wilson, G; Venables, P; Isaacs, J (RHEUMATOLOGY, 2011)