- Correspondence to Professor Keiko Tanaka, Department of Neurology, Kanazawa Medical University, 11 Daigaku, Uchinadamachi, Kahokugun, Ishikawa, Japan;
- Received April 27, 2011
- Revised May 7, 2011
- Accepted May 9, 2011
- First published June 10, 2011.
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