- Correspondence to Jan Breckwoldt, Faculty of Medicine, University of Zurich, Pestalozzistr. 3–5, Zurich CH-8091, Switzerland;
- Received February 24, 2014
- Revised July 5, 2014
- Accepted August 2, 2014
- First published August 22, 2014.
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.