1 Centre for Research Excellence (CRE) in the Early Prevention of Obesity in Childhood (EPOCH), School of Public Health, University of Sydney, New South Wales.
2 Centre for Research Excellence (CRE) in Obesity Policy and Food Systems, Global Obesity Centre (GLOBE), Deakin Health Economics, Centre for Population Health Research, Deakin University, Victoria.
3 The Children's Hospital at Westmead Clinical School, University of Sydney, New South Wales.
4 Sydney School of Public Health, University of Sydney, New South Wales.
5 Health Promotion Service, Sydney Local Health District, Sydney, New South Wales.