- Correpondence to Michelle A Morris, Nutritional Epidemiology Group, School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK;
- Received 16 February 2014
- Revised 27 June 2014
- Accepted 30 June 2014
- Published online 1 October 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.