1. Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
2. Centre for Eye Research Australia, Department of Ophthalmology, Royal Victorian Eye and Ear Hospital, East Melbourne, Melbourne, Australia
3. School of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Victoria, Australia
4. Lost Child's Vision Project, Sydney, New South Wales, Australia
5. Department of Paediatrics, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Victoria, Australia
6. Murdoch Children's Research Institute, Parkville, Victoria, Australia
7. Centre for Adolescent Health, Royal Children's Hospital, Parkville, Victoria, Australia