- Correspondence to Dr Noriaki Minami, Department of Neurosurgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan;
- Received April 22, 2014
- Revised July 2, 2014
- Accepted September 2, 2014
- First published September 15, 2014.
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