- Correspondence to Professor Dirk M Hermann, Neurology, University Hospital Essen, Essen, Germany;
- Received November 15, 2019
- Revised January 7, 2020
- Accepted February 17, 2020
- First published March 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.