1. Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
2. Saw Swee Hock School of Public Health, National University of Singapore, Singapore
3. Departments of Epidemiology and Ophthalmology, Erasmus Medical Center, Rotterdam, the Netherlands
4. Department of Ophthalmology, National University of Singapore, Singapore
5. Schepens Eye Research Institute and Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts
6. Department of Ophthalmology and Visual Sciences, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin
7. National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
8. Centre for Eye Research Australia, University of Melbourne, Melbourne, Victoria, Australia