Yuji Wang*, Dawei Li*, Nanwei Xu, Weijian Tao, Ruixia Zhu, Rongbin Sun, Weiwei Fan, Ping Zhang, Tianhua Dong and Long Yu
* Corresponding authors: Yuji Wang yujiwang@sohu.com - Dawei Li ldw20319750826@hotmail.com
Arthritis Research & Therapy 2011, 13:R193 doi:10.1186/ar3522