Dawei Li*, Yuji Wang*, Nanwei Xu, Qianghua Wei, Min Wu, Xiaofeng Li, Ping Zheng, Sai Sun, Yuli Jin, Gailian Zhang, Ruomin Liao and Ping Zhang
* Corresponding authors: Dawei Li ldw20319750826@hotmail.com - Yuji Wang yujiwang@sohu.com
Arthritis Research & Therapy 2011, 13:R17 doi:10.1186/ar3241