. Author manuscript; available in PMC: 2016 Feb 1.
Published in final edited form as: Int J Obes (Lond). 2015 Apr 14;39(8):1319–1324. doi: 10.1038/ijo.2015.47
Users may view, print, copy, and download text and data-mine the content in such documents, for the purposes of academic research, subject always to the full Conditions of use:http://www.nature.com/authors/editorial_policies/license.html#terms