Funding for this research was provided by:
Inspire Foundation (iCycle I)
Text and Data Mining valid from 2019-11-27
Received: 13 March 2019
Accepted: 6 November 2019
First Online: 27 November 2019
Ethics approval and consent to participate
: Ethical approval for the study was provided by the City Road and Hampstead Research Ethics Committee (13/LO/0832), and all participants gave informed written consent prior to participating in the study (see Additional files InternalRef removed and InternalRef removed).
: The authors declare that they have no competing interests.