1. Department of Neurology Institution of Clinical and Experimental Medicine (IKE) Linköping University Hospital Linköping Sweden
2. School of First Clinical Medicine Southern Medical University Guangzhou China
3. Department of Ophthalmology IKE Linköping University Hospital Linköping
4. Department of Neuroscience Karolinska Institute Stockholm Sweden
5. Department of Ophthalmology and Vision Sciences University of Toronto Toronto ON Canada