- Correspondence to Dr A J Larner, Walton Centre for Neurology and Neurosurgery, Liverpool L9 7LJ, UK;
- Received December 7, 2020
- Accepted February 10, 2021
- First published March 15, 2021.
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.