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. 2016 Apr 22;48(4):e228. doi: 10.1038/emm.2016.12

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Copyright © 2016 KSBMB.

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/

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Forest plots based on serum Dickkopf-1 levels: (a) forest plot for the AS studies; (b) forest plot for the RA studies. AS, ankylosing spondylitis; RA, rheumatic arthritis.