- Correspondence to Dr Yuki Sakamoto, Department of Neurology, Nippon Medical School, Tokyo 113-8602, Japan;
- Received November 12, 2019
- Revised January 13, 2020
- Accepted January 22, 2020
- First published February 12, 2020.
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.