1. Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz 85-094, Poland
2. Clinic of Vascular and Internal Medicine, Dr Jan Biziel University Hospital No. 2 in Bydgoszcz, Bydgoszcz 85-168, Poland