Funding for this research was provided by:
Received: 1 August 2017
Accepted: 22 January 2018
First Online: 30 January 2018
Ethics approval and consent to participate
: Health Research Authority (HRA) was obtained in June 2017, which included a review by the West Midlands NHS Research Ethics Committee (17/WM/0197). Written consent will be obtained from participants prior to completion of the questionnaire components.
: Not applicable.
: The authors declare that they have no competing interests.
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