Received: 21 August 2018
Accepted: 18 December 2018
First Online: 23 January 2019
Ethics approval and consent to participate
: The project was approved by the Royal Prince Alfred Hospital Human Research Ethics Committee (Reference number: X11–0162). Consistent with <i>Australia’s National Statement on Ethical Conduct in Human Research</i> [CitationRef removed], consent was implied by the return of the survey. This method of consent was approved by the Human Research Ethics Committee.
: Not applicable.
: The authors declare that they have no competing interests.
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