- Correspondence to: Dr J J M Kruisdijk Department of Neurology, Academic Medical Centre, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands;
- Received October 27, 2005
- Accepted October 14, 2006
- Revised September 17, 2006
- First published December 21, 2006.
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.