- Received December 27, 2012, and in revised form January 29, 2013.
- Accepted for publication February 2, 2013.
- Supported by Fund for National Nature Science Foundation of China under Grant (No.81172867).
- Reprints: Jing Lu, PhD, Department of Rheumatology and Immunology, The First Affiliated Hospital of China Medical University, 155 Nanjing North St, Heping District, Shenyang 110001, PR China. E-mail: .
- First published December 14, 2015.
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