- Correspondence to Professor Neil Armstrong, Children's Health and Exercise Research Centre, University of Exeter, Northcote House, The Queen's Drive, Exeter EX4 4QJ, UK;
- Accepted June 26, 2011
- First published August 11, 2011.
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.