1. Department of Neuroscience, Faculty of Medicine, Norwegian University of Science and Technology, Edvard Griegs Gate. 8, 3. Etg., 7489 Trondheim, Norway
2. Department of Experimental Pharmacology, Mossakowski Medical Research Centre, Polish Academy of Sciences, 02-106 Warsaw, Poland
3. Department of Ophthalmology, Medical University of Silesia, District Railway Hospital, 40-001 Katowice, Poland
4. Department of Ophthalmology, University Hospital, 7006 Trondheim, Norway