- Correspondence to Dr Kai U Frerichs, Department of Neurological Surgery, Brigham and Women's Hospital and Harvard Medical School, 75 Francis St, Boston, MA 02115, USA;
- Received April 23, 2013
- Accepted May 5, 2013
- First published July 18, 2013.
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.