- Correspondence to : Dr Alexandra Durr, ICM (Institut du Cerveau et de la Moelle épinière), Hôpital de la Salpêtrière, 47 boulevard de l'Hôpital, Paris cedex 13, 75651 France;
- Received July 28, 2016
- Revised December 5, 2016
- Accepted December 13, 2016
- First published January 13, 2017.
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