- Correspondence to Dr A Pezzini, Clinica Neurologica, Università degli Studi di Brescia, P le Spedali Civili, 1, 25100 Brescia, Italia;
- Received October 7, 2010
- Revised December 9, 2010
- Accepted December 15, 2010
- First published January 26, 2011.
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