- Correspondence to Dr Nicholas Greig Evans, Department of Medical Ethics and Health Policy, University of Pennsylvania, Philadelphia, PA 19104, USA;
- Received December 2, 2014
- Revised August 4, 2015
- Accepted August 12, 2015
- First published August 28, 2015.
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.