- Correspondence to Professor Xiangbo Wang, Department of Neurology, Xuanwu Hospital, Capital University of Medical Sciences, Beijing Neurology Consultation Center, 45 Changchun Street, Beijing 100053, PR China;
- Received 25 May 2009
- Revised 7 July 2009
- Accepted 9 July 2009
- Published online 3 August 2010.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.