1. Swiss Eye Institute, Rotkreuz, Switzerland.
2. Berner Augenklinik am Lindenhofspital, Bern, Switzerland.
3. University of Bern, Bern, Switzerland.
4. Clinic for Radiology and Nuclear Medicine, University Hospital Lübeck, Lübeck, Germany.
5. Department of Interventional Radiology, Lübeck, Germany.