- Correspondence to Dr Takanori Yokota, Department of Neurology and Neurological Science, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyo-ku, Tokyo 113-8519, Japan;
- Received April 16, 2013
- Revised June 27, 2013
- Accepted July 17, 2013
- First published September 11, 2013.
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