Funding for this research was provided by:
Text and Data Mining valid from 2018-11-26
Received: 19 July 2018
Accepted: 24 October 2018
First Online: 26 November 2018
Ethics approval and consent to participate
: The MERIT study has gained ethical clearance from the University of Manchester Research Ethics Committee (reference 2018–3618-5827).
: Not applicable.
: The authors declare that they have no competing interests.
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