- Correspondence to Professor Arthur Kavanaugh, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0943, USA;
- Received November 11, 2013
- Revised March 21, 2014
- Accepted March 23, 2014
- First published April 19, 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 CONCISE
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.