Funding for this research was provided by:
Collaboration for Leadership in Applied Health Research and Care - Greater Manchester (6942/003)
Text and Data Mining valid from 2020-02-28
Received: 2 May 2019
Accepted: 5 February 2020
First Online: 28 February 2020
Ethics approval and consent to participate
: This study was conducted according to the guidelines laid down in the Declaration of Helsinki, and all procedures involving human subjects were approved by the UCL Research Ethics Committee; reference number: (8551/001). Written informed consent was obtained from all subjects.
: Not applicable.
: The authors declare that they have no competing interests.