- Correspondence to Dr Hajime Nakamura, Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka, 5650871, Japan;
- Received 17 September 2017
- Revised 12 November 2017
- Accepted 14 November 2017
- Published online 4 December 2017.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.