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. 2014 Sep 24;16(5):434. doi: 10.1186/s13075-014-0434-z

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© Greisen et al.; licensee BioMed Central Ltd. 2014

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Plasma levels of CXCL13 in early RA patients and healthy volunteers. Levels of CXCL13 in plasma from early-stage RA patients (n = 76) and healthy volunteers (n = 38). Plasma CXCL13 levels were measured at treatment initiation (0) and after 6 months of treatment (6). Bars represent median with interquartile range. The cutoff level for detection was 7.8 pg/ml (dotted line). All values below the cutoff were assigned the cutoff value. Level of significance is indicated by asterisks (***: P <0.0001). CXCR13: C-X-C chemokine receptor type 13; RA: rheumatoid arthritis.