- Correspondence to:
Dr M Versino, Dipartimento Scienze Neurologiche Università di Pavia, Fondazione Istituto Neurologico C Mondino, IRCCS, Via Palestro 3, 27100 Pavia, Italy;
- Received April 18, 2001
- Revised August 28, 2001
- Accepted October 23, 2001
- First published February 1, 2002.
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