- Correspondence to: Dr Dae Hie Lee Department of Neurology, Korea University Medical College, 126–1, Anam-dong-5-ga, Sungbuk-gu, Seoul 136–705, Republic of Korea;
- Received February 16, 2004
- Accepted April 24, 2004
- Revised March 30, 2004
- First published December 16, 2004.
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