Funding for this research was provided by:
National Institute for Health Research
Text and Data Mining valid from 2019-05-10
Received: 6 June 2018
Accepted: 30 April 2019
First Online: 10 May 2019
Ethics approval and consent to participate
: The study was approved by the North West- Greater Manchester South Research Ethics Committee (REC reference number: 12/NW/0173) and all patients provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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