Received: 12 March 2017
Accepted: 14 May 2018
First Online: 24 May 2018
Ethics approval and consent to participate
: The project received ethical approval from the Sheffield Hallam University research ethics committee (reference Ref: 2013–4/HWB/HSC/STAFF/14). Participants completed a consent form and were provided with participant information sheet prior to commencement of the focus groups.
: There authors declare that they have no competing interests.
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