- Correspondence to Dr M Bertoux, Institut de la Mémoire et de la Maladie d'Alzheimer - CHU Pitié-Salpêtrière, 47-83 boulevard de l'hôpital, 75013 Paris, France;
- Received November 16, 2011
- Revised December 30, 2011
- Accepted January 8, 2012
- First published January 29, 2012.
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