1. Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
2. School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
3. Faculty of Science, University of British Columbia, Vancouver, BC, Canada
4. Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
5. Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
6. Department of Ophthalmology and Visual Sciences, University of Alberta, Edmonton, AB, Canada
7. Department of Ophthalmology and Vision Sciences, University of Toronto Temerty School of Medicine, Toronto, Ontario, Canada
8. Department of Ophthalmology, School of Medicine, Queen's University, Kingston, Ontario, Canada