1. Molecular Medicine Center, Department of Medical Chemistry and Biochemistry, Medical Faculty Medical University of Sofia Sofia Bulgaria
2. Laboratory of Genomic Diagnostics, Department of Medical Chemistry and Biochemistry, Medical Faculty Medical University of Sofia Sofia Bulgaria
3. Department of Ophthalmology University Hospital “Alexandrovska”, Medical University of Sofia Sofia Bulgaria
4. Clinic of Ophthalmology University Hospital „Lozenetz“, Medical Faculty, Sofia University „St. Kliment Ohridski“ Sofia Bulgaria
5. Clinic “Vision” Sofia Bulgaria
6. Department of Neurology University hospital “Alexandrovska”, Medical University of Sofia Sofia Bulgaria