- Correspondence to Dr Jenna Panter, MRC Epidemiology Unit and UKCRC Centre for Diet and Activity Research (CEDAR), School of Clinical Medicine, University of Cambridge, Box 285, Cambridge Biomedical Campus, Cambridge, CB2 0QQ, UK;
- Received 27 September 2016
- Revised 20 January 2017
- Accepted 23 January 2017
- Published online 7 March 2017.
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