1 School of Public Health and Community Medicine, Faculty of Medicine, University of New South Wales, Sydney, NSW, 2052, Australia. r.macintyre@unsw.edu.au.
2 College of Public Service & Community Solutions, Arizona State University, Phoenix, AZ, 85004, USA. r.macintyre@unsw.edu.au.
3 School of Public Health and Community Medicine, Faculty of Medicine, University of New South Wales, Sydney, NSW, 2052, Australia.