Received: 7 February 2021
Accepted: 21 March 2021
First Online: 16 June 2021
: The authors (Alexander Blayney, James P.A. McCullough, Elizabeth Wake, Kerin Walters, Don Campbell, Debbie Ho, Erick Chan, Aashish Chalasani and James Winearls) declare that they have no conflict of interest.
: This study was performed according to the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. Ethics approval was obtained from the Gold Coast Hospital and Health Service Human Research Ethics Committee on the 26th March 2014 (HREC/14/QGC/17).
: Waived consent was granted as section 2.3 of the National Statement on Ethical Conduct in Human Research.