- Correspondence to Dr Xiang-Yang Wang, Department of Human & Molecular Genetics, Virginia Commonwealth University School of Medicine, PO Box 980033, Richmond, VA 23298, USA; ; Dr Zhanguo Li, Department of Rheumatology and Immunology, Peking University People's Hospital, 11 Xizhimen South Street, Beijing 100044, China; email@example.com
- Received March 4, 2014
- Revised August 27, 2014
- Accepted October 12, 2014
- First published November 4, 2014.
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