1. Clinic of Neurological Diseases, University Hospital “Aleksandrovska”, Medical University of Sofia, Sofia, Bulgaria
2. Genetic Medico-Diagnostic Laboratory “Genica”, Sofia, Bulgaria
3. Genome Diagnostics Laboratory, Molecular Medicine Center, Medical University of Sofia, Sofia, Bulgaria
4. Department of Medical Chemistry and Biochemistry, Medical Faculty, Medical University of Sofia, Sofia, Bulgaria
5. Clinic of Eye Diseases, University Hospital “Aleksandrovska”, Sofia, Bulgaria
6. Department of Ophthalmology, Medical University of Sofia, Bulgaria
7. Department of Neurology, Medical Faculty, Medical University of Sofia, Sofia, Bulgaria
8. Department of Cognitive Science and Psychology, New Bulgarian University, Sofia, Bulgaria