Received: 4 September 2019
Accepted: 30 April 2020
First Online: 13 May 2020
Ethics approval and consent to participate
: This study received ethical approval from the University of Melbourne Human Research Ethics Committee (ID 1749758). All participants provided written informed consent via an online consent form preceding the survey; this procedure was approved by the research ethics committee.
: Not applicable.
: The authors declare that they have no competing interests.