Funding for this research was provided by:
National Health and Medical Research Council (1087192, 1117198, 1117582)
Received: 28 November 2018
Accepted: 30 May 2019
First Online: 1 July 2019
Ethics approval and consent to participate
: Ethical approvals and consent to participate were provided from two ethics committees: Aboriginal Health Council of South Australia (ACHSA: 04-15-621) and Metro South Health Human Research Ethics Committee (Queensland; HREC/16/QPAH/293).
: Not applicable.
: The authors declare that they have no competing interests.