1. Department of Ophthalmology Leiden University Medical Center Leiden The Netherlands
2. Department of Ophthalmology Haga Hospital The Hague The Netherlands
3. Department of Ophthalmology Rigshospitalet Glostrup Denmark
4. Department of Clinical Research University of Southern Denmark Odense Denmark
5. Department of Ophthalmology Odense University Hospital Odense Denmark
6. Department of Ophthalmology Vestfold Hospital Trust Tønsberg Norway
7. Department of Ophthalmology, Amsterdam University Medical Centers University of Amsterdam Amsterdam The Netherlands