Received: 27 August 2019
Accepted: 13 January 2020
First Online: 20 January 2020
Ethics approval and consent to participate
: Ethical permission for the study was gained from the College of Human and Health Sciences Research Ethics Committee at Swansea University (reference number 70216) alongside the Research Ethics Committee in the Saudi Ministry of Health (reference number 2805426). All aspects of the Declaration of Helsinki 1964 were adhered to. Participants provided written consent to take part.
: Not applicable.
: Both authors declare that they have no competing interests.