Chun-Ling Xu*, Lei Liu, Wei-Qin Zhao, Ji-Mei Li, Rui-Jin Wang, Shu-Hui Wang, De-Xin Wang, Mei-Yun Liu, Shan-Shan Qiao and Jia-Wei Wang*
* Corresponding authors: Chun-Ling Xu xchling@yahoo.cn - Jia-Wei Wang jw_wang2000@yahoo.com.cn
BMC Neurology 2011, 11:149 doi:10.1186/1471-2377-11-149