- Correspondence to Dr Stéphanie Millecamps, Centre de Recherche de l'Institut du Cerveau et de la Moelle épinière, Groupe hospitalier Pitié-Salpêtrière, 83, Bd de l'Hôpital, 75013 Paris, France;
- Received December 16, 2011
- Revised February 15, 2012
- Accepted March 5, 2012
- First published April 12, 2012.
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