Funding for this research was provided by:
Medical Research Council (MR/P017185/1)
Text and Data Mining valid from 2018-03-27
Received: 5 December 2017
Accepted: 14 March 2018
First Online: 27 March 2018
Ethics approval and consent to participate
: Ethical approval and research permissions have been successfully obtained from the Research Ethics Committee (17/YH/0301) (Yorkshire & The Humber - Leeds East Research Ethics Committee), Health Research Authority (IRAS ID 230315) and NIHR CRN Portfolio Adoption.
: Not applicable.
: The authors declare that they have no competing interests.
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