Chang Liu*, Jianqin Li, Liangjie Wang, Fuqun Wu, Linfang Huang, Yue Xu, Jieyu Ye, Bin Xiao, Fanyi Meng, Shilin Chen and Mo Yang*
* Corresponding authors: Chang Liu cliu6688@yahoo.com - Mo Yang yangm1091@yahoo.com.hk
BMC Complementary and Alternative Medicine 2012, 12:5 doi:10.1186/1472-6882-12-5