1. Department of Human Physiology and Pathophysiology, University Warmia and Mazury, Olsztyn, Poland
2. Department of Hypertension and Diabetology, Faculty of Medicine, Medical University of Gdańsk, Gdańsk, Poland
3. First Department of Cardiology, Faculty of Medicine, Medical University of Gdańsk, Gdańsk, Poland
4. Department of Ophthalmology, University Warmia and Mazury, Olsztyn, Poland
5. Department of Ophthalmology, Provincial Specialist Hospital, Olsztyn, Poland
6. Clinical Research Center, Department of Nephrology and Hypertensiology, University Erlangen-Nuremberg, Erlangen, Germany