1. Hunter New England Population Health, Wallsend, NSW, Australia
2. School of Medicine and Public Health, University of Newcastle, Wallsend, NSW, Australia
3. School Health Medical and Applied Sciences, Division Higher Education, Centre for Indigenous Health Research Equity, Central Queensland University Australia, Bundaberg, QLD, Australia
4. Discipline of Chemistry, Department of Physical Sciences, James Cook University, College of Science and Engineering, Townsville, QLD, Australia