Received: 11 February 2020
Accepted: 15 June 2020
First Online: 23 June 2020
Ethics approval and consent to participate
: Ethical approval for this study, involving secondary data analyses, has been obtained from the Ethics Committee in the University of Southampton. Informed written consent was obtained from each participant, who were ensured that data would remain confidential and used for research purposes only.
: Not applicable.
: The authors declare that they have no competing interests.