- Correspondence to Dr Jill Ostrem, Surgical Movement Disorders Center, University of California San Francisco, 1635 Divisadero Street, Suite 520, UCSF Box 1838, San Francisco, CA 94143-1838, USA;
- Received February 21, 2014
- Revised May 27, 2014
- Accepted June 14, 2014
- First published July 10, 2014.
This web only file has been produced by the BMJ Publishing Group from an electronic file supplied by the author(s) and has not been edited for content.
Files in this Data Supplement:
- Data supplement 1 - Online supplement
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.