- Correspondence to: Dr Yves Dauvilliers Service de Neurologie B, Hôpital Gui-de-Chauliac, 80 avenue Augustin Fliche, 34295 Montpellier cedex 5, France;
- Received March 7, 2003
- Accepted May 17, 2003
- Revised May 14, 2003
- First published November 24, 2003.
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