Funding for this research was provided by:
National Institute for Health Research (PR-R6-1113-25001)
Text and Data Mining valid from 2018-07-11
Received: 19 February 2018
Accepted: 4 July 2018
First Online: 11 July 2018
Ethics approval and consent to participate
: Ethics approval was given by the University of Manchester research ethics committee in March 2015. Participants were provided with written information about the study, and gave written consent, or for telephone interviews gave consent verbally at the beginning of the interview.
: Participants gave consent for publication of anonymised quotes from their interview transcripts.
: The authors declare that they have no competing interests.
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