RT Journal Article SR Electronic T1 Low Level (Below Cutoff) of Anti-Cyclic Citrullinated Peptide Test Results in Diagnosis of Rheumatoid Arthritis in a High-risk Population JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 208 OP 208 DO 10.3899/jrheum.090555 VO 37 IS 1 A1 DUCK-AN KIM A1 THINK-YOU KIM YR 2010 UL http://www.jrheum.org/content/37/1/208.abstract AB