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. 2017 Oct 30;69(12):2303–2313. doi: 10.1002/art.40227

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© 2017 The Authors. Arthritis & Rheumatology published by Wiley Periodicals, Inc. on behalf of American College of Rheumatology.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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A, Spearman's rank correlation coefficients for the correlations between different anti−citrullinated peptide antibodies (ACPAs) in rheumatoid arthritis (RA) patients. P < 0.001 for all correlations. Boldface indicates the correlation between citrullinated cytokeratin 13 (cCK13‐1) and citrullinated tenascin‐C (cTNC5) antibody levels. B, Venn diagrams showing the overlap between cTNC5, cCK13‐1, and cyclic citrullinated peptide 2 (CCP‐2) antibody responses (left) and between cTNC5, cCK13‐1, and citrullinated α‐enolase peptide 1 (CEP‐1) responses (right). Values in the diagrams are the number of patients in each subset, and values in parentheses are the total number of ACPA‐positive patients. cFIBβ = citrullinated fibrinogen β; cVIM = citrullinated vimentin.