- Correspondence to Dr Nick M Murray, Department of Neurology & Neurological Sciences, Stanford University, Stanford, California, USA;
- Received May 20, 2019
- Revised July 29, 2019
- Accepted July 29, 2019
- First published October 8, 2019.
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.