1. Department of Biochemistry, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia in Katowice, Jordana 19, 41-808 Zabrze, Poland
2. Clinic of Ophthalmology, School of Medicine in Katowice, Medical University of Silesia in Katowice, Ceglana 35, 40-952 Katowice, Poland
3. Department of Medical and Molecular Biology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia in Katowice, Jordana 19, 41-808 Zabrze, Poland
4. Department of Statistics, SPLMS in Sosnowiec, Ostrogórska 30, 43-302 Sosnowiec, Poland
5. Department of Pathology, SPLMS in Sosnowiec, Ostrogórska 30, 43-302 Sosnowiec, Poland
6. Department of Medical Biochemistry, Wrocław Medical University, Chałubińskiego 10, 50-368 Wrocław, Poland