- Correspondence to Dr Christian Denier, Department of Neurology, Hôpital de Bicêtre, Assistance Publique des Hôpitaux de Paris (AP-HP), 78 rue du Général Leclerc, 94275 Le Kremlin-Bicêtre, France;
- Received January 30, 2012
- Revised March 31, 2012
- Accepted April 24, 2012
- First published June 13, 2012.
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