- Correspondence to: Professor G Sobue, Department of Neurology, Nagoya University School of Medicine, 65 Tsurumai-cho Showa-ku, Nagoya 466–8550 Japan;
- Received October 17, 2002
- Accepted December 11, 2002
- Revised December 4, 2002
- First published May 1, 2003.
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