Funding for this research was provided by:
Economic and Social Research Council (ES/H012842/1)
Text and Data Mining valid from 2018-04-11
Received: 24 October 2017
Accepted: 27 March 2018
First Online: 11 April 2018
Ethics approval and consent to participate
: The study received ethical approval from NHS National Research Ethics Service – Yorkshire & the Humber – Bradford (11/YH/0163). Consent to participate was obtained in written form from all participants.
: Consent for publication (i.e. copies of all images) in journal publications was obtained in written form from all participants.
: The authors declare that they have no competing interests.
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