Received: 30 November 2019
Accepted: 29 January 2020
First Online: 7 February 2020
Ethics approval and consent to participate
: The Ethics Review Board of King Abdullah International Medical Research Centre approved the study protocol. All participants were informed about the nature and purpose of the survey and gave their consent to taking part.
: Not applicable.
: TJS is a Director and Trustee of <i>Lifting The Burden</i>. There were no other conflicts of interest.