Funding for this research was provided by:
Wellcome Trust (203919/Z/16/Z)
Text and Data Mining valid from 2019-12-01
Received: 24 August 2019
Accepted: 12 November 2019
First Online: 17 December 2019
Ethics approval and consent to participate
: This work will not involve direct contact with human subjects or participant identifiable data. Ethical approval is therefore not required for this study.
: Not applicable.
: The authors declare that they have no competing interests.