1. Department of Hypertension and Diabetology, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland;
2. First Department of Cardiology, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland;
3. Department of Pathophysiology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland;
4. Department of Nephrology and Hypertension, Clinical Research Centre, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany