Article History
Received: 27 February 2019
Accepted: 17 June 2019
First Online: 4 July 2019
Ethics approval and consent to participate
: This study has received ethical approval from the Australian Institute of Health and Welfare (EO2017/1/338), Townsville Hospital and Health Service (HREC/16/QTHS/223) and James Cook University (H7246). A Public Health Act (PHA) approval was obtained to obtain the data for this study (RD006772).
: Not applicable.
: The authors declare that they have no competing interests.