1. Department of Nephrology, Hypertension and Internal Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
2. Department of Human Physiology and Pathophysiology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
3. Department of Industrial and Food Microbiology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
4. Clinical Research Centre, Department of Nephrology and Hypertension, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany