Funding for this research was provided by:
Text and Data Mining valid from 2019-09-12
Received: 17 October 2018
Accepted: 9 August 2019
First Online: 12 September 2019
Ethics approval and consent to participate
: This study has been approved by the South-East Scotland Research Ethics Committee 2 (REC reference 17/SS/0124). Informed consent will be obtained from all study participants at the point of enrolment.
: Not applicable.
: The authors declare they have no competing interests.