1. Department of Nephrology, “Democritus” University of Thrace, Medical School, University General Hospital of Alexandroupolis, Alexandroupolis, Greece;
2. Department of Vascular Surgery, “Democritus” University of Thrace, Medical School, University General Hospital of Alexandroupolis, Alexandroupolis, Greece;
3. Laboratory of Pharmacology, “Democritus” University of Thrace, Medical School, Alexandroupolis, Greece