- Correspondence to Professor Takashi Kanda, Department of Neurology and Clinical Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi 7558505, Japan;
- Received March 8, 2016
- Accepted March 9, 2016
- First published May 11, 2016.
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