- Correspondence to Professor Vincenzo Silani, Department of Neurology, Università degli Studi di Milano, IRCCS Istituto Auxologico Italiano, Piazzale Brescia 20, Milan 20149, Italy;
- Received June 10, 2012
- Revised September 24, 2012
- Accepted September 25, 2012
- First published November 8, 2012.
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