Funding for this research was provided by:
Biotechnology and Biological Sciences Research Council (BB/H008217/1)
Text and Data Mining valid from 2018-06-19
Received: 2 November 2017
Accepted: 3 June 2018
First Online: 19 June 2018
Ethics approval and consent to participate
: Ethical approval for the study was obtained from the Cambridgeshire 2 (now East of England – Cambridge Central) Research Ethics Committee. All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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