1. Department of Vascular Diseases, Centre for Preventive Cardiology, University Medical Centre Ljubljana, Zaloška cesta 7/VI, Ljubljana SI-1000, Slovenia
2. Faculty of Medicine, University of Ljubljana, Vrazov trg 2, Ljubljana SI-1000, Slovenia
3. Faculty of Organizational Sciences, University of Maribor, Kidričeva cesta 55a, Kranj SI-4000, Slovenia