1 Speciality of Child and Adolescent Health, Children's Hospital Westmead Clinical School, Faculty of Medicine and Health, University of Sydney, NSW 2145, Australia; Wellbeing, Health & Youth National Health and Medical Research Council Centre for Research Excellence in Adolescent Health, Sydney, NSW, Australia. Electronic address: cristyn.davies@sydney.edu.au.
2 Austin Health, Heidelberg, VIC, Australia; The Royal Children's Hospital Melbourne, Parkville, VIC, Australia; Mercy Hospital for Women, Heidelberg, VIC, Australia; Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia.
3 College of Education, Psychology and Social Work, Flinders University, Adelaide, SA, Australia; School of Psychology, University of Adelaide, Adelaide, SA, Australia.
4 School of Social Sciences, Western Sydney University, NSW, Australia.