1. 3rd Surgical Department, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
2. Clinic of Anesthesiology and Intensive Care, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
3. Department of Clinical Pharmacology, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54006 Thessaloniki, Greece