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BioMed Research International
Volume 2015, Article ID 543806, 6 pages
http://dx.doi.org/10.1155/2015/543806
Research Article

Serum Vitamin D and Pyridinoline Cross-Linked Carboxyterminal Telopeptide of Type I Collagen in Patients with Ankylosing Spondylitis

Department of Rheumatology, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou 510630, China

Received 11 September 2014; Revised 15 December 2014; Accepted 18 December 2014

Academic Editor: James C. C. Wei

Copyright © 2015 Pingping Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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