Funding for this research was provided by:
Wellcome Trust (206480/Z/17/Z)
Economic and Social Research Council (ES/N018621/1)
Text and Data Mining valid from 2019-12-01
Received: 28 March 2019
Accepted: 13 September 2019
First Online: 2 December 2019
Ethics approval and consent to participate
: Ethical approval for this study was received from the Local Ethics Committee (ICN Departmental Ethics Chair; reference number 1584_002) and informed consent was obtained from all participants prior to the study.
: Not applicable
: The authors declare that they have no competing interests.