- Correspondence to Dr John A Thompson, Department of Neurosurgery, University of Colorado School of Medicine, Aurora, CO 80045, USA;
- Received March 23, 2017
- Revised August 13, 2017
- Accepted August 14, 2017
- First published September 2, 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.