1. Department of Clinical Sciences; Umeå University Hospital; Umeå Sweden
2. Centre for Clinical Research; Uppsala University; County Council of Västmanland; Västerås Sweden
3. Department of Radiology; Institution of Translational Medicine; Lund University; Malmö Sweden
4. Register Centre South; Blekinge Hospital; Karlskrona Sweden
5. Department of Ophthalmology; Örebro University Hospital; Örebro Sweden
6. Department of Ophthalmology; Lund University; Lund Sweden