Shengping Hou, Qinmeng Shu, Zhengxuan Jiang, Yuanyuan Chen, Fuzhen Li, Feilan Chen, Aize Kijlstra and Peizeng Yang*
* Corresponding author: Peizeng Yang peizengycmu@126.com
Arthritis Research & Therapy 2012, 14:R70 doi:10.1186/ar3789