- Professor NP Quinn, Department of Clinical Neurology, Institute of Neurology, Queen Square, London WC1 3BG, UK. Telephone 0044 171 837 3611; fax 0044 171 278 5616.
- Received February 1, 1999
- Revised May 4, 1999
- Accepted May 13, 1999
- First published October 1, 1999.
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.