1. Institute of Child and Adolescent Health, School of Public HealthPeking University Beijing China
2. Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive MedicineMonash University Melbourne Victoria Australia
3. The George Institute for Global Health, School of MedicineThe University of New South Wales Sydney New South Wales Australia
4. Department of Public HealthErasmus University Medical Center Rotterdam The Netherlands
5. Department of Paediatrics, Faculty of Medicine, Dentistry and Health SciencesThe University of Melbourne Melbourne Victoria Australia
6. Centre for Adolescent HealthMurdoch Children's Research Institute Melbourne Victoria Australia
7. Centre for Adolescent Health, The Royal Children's Hospital Melbourne Victoria Australia