Text and Data Mining valid from 2019-12-01
Received: 14 March 2019
Accepted: 29 November 2019
First Online: 26 December 2019
Ethics approval and consent to participate
: This study received approval by the Office for Research Ethics Committee Northern Ireland (MREC Reference: 14/NI/1132). Written informed consent was obtained from all study participants.
: Not applicable.
: The authors declare no conflict of interest.