About the Authors

Nelson Martins

Affiliations Menzies School of Health Research, Darwin, Northern Territory, Australia , Institute of Advanced Studies, Charles Darwin University, Darwin, Northern Territory, Australia

Paul M Kelly

To whom correspondence should be addressed. E-mail: paul.kelly@anu.edu.au

Affiliations Menzies School of Health Research, Darwin, Northern Territory, Australia , National Centre for Epidemiology and Population Health, College of Medicine and Health Sciences, Australian National University, Canberra, Australian Capital Territory, Australia

Jocelyn A Grace

Affiliation Menzies School of Health Research, Darwin, Northern Territory, Australia

Anthony B Zwi

Affiliation School of Public Health and Community Medicine, University of New South Wales, Sydney, New South Wales, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

NM, PMK, and JAG contributed to the conception and design of the research. NM contributed to the literature review and conducted interviews. NM, PMK, and JAG contributed to the data interpretation. ABZ contributed to the data review. NM, PMK, JAG, and ABZ contributed to the writing of the paper.