1. Tays Eye Centre Tampere University Hospital and Tampere University Tampere Finland
2. Helsinki University and Helsinki University Hospital Helsinki Finland
3. Seinäjoki Central Hospital Seinäjoki Finland
4. Oulu University Hospital Oulu Finland
5. Kuopio University Hospital Kuopio Finland
6. Mehiläinen Helsinki Finland
7. Terveystalo Helsinki Finland
8. Turku University Hospital and Turku University Turku Finland
9. The Finnish Medical Society Duodecim Helsinki Finland