1. Department of Ophthalmology, Military University Hospital Prague, 1st Faculty of Medicine, Charles University, Prague, Czech Republic
2. Department of Ophthalmology, Faculty of Medicine, Masaryk University Brno, Czech Republic
3. Department of Ophthalmology, University Hospital, Brno, Czech Republic
4. Department of Ophthalmology, University Hospital Olomouc, Faculty of Medicine and Dentistry, Palacký University Olomouc, Olomouc, Czech Republic
5. Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University, and General University Hospital in Prague, Prague, Czech Republic