Funding for this research was provided by:
NIHR Collaborations for Leadership in Applied Health Research and Care West Midlands
NIHR School for Primary Care Research
NIHR Research Professorship in General Practice (NIHR-RP-2014-04-026)
Received: 23 January 2018
Accepted: 29 April 2018
First Online: 5 July 2018
Ethics approval and consent to participate
: Not applicable.
: The authors declare that they have no competing interests.
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