- Received May 23, 2011, and in revised form July 13, 2011.
- Accepted for publication August 16, 2011.
- Reprints: Soner Senel, MD, Department of Rheumatology, Cumhuriyet University School of Medicine, Sivas, Turkey. E-mail: .
- The authors do not have conflict of interests.
- First published December 15, 2015.
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