Funding for this research was provided by:
National Institute for Health Research (297, ICA-CL-2016-02-014, IPF-2014-08-03)
Received: 23 March 2018
Accepted: 16 October 2018
First Online: 5 November 2018
Ethics approval and consent to participate
: Ethical approval for the study was obtained from North East – York Research Ethics Committee (REC Reference number: 16/NE/0390). All participants provided consent to participate in the study.
: GP has received consultancy fees from InFirst Healthcare Ltd. The other authors declare that they have no other competing interest to declare.
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