1. Faculty of Medicine, University of Maribor, Maribor, Slovenia;
2. Department of Anaesthesiology, Intensive Care and Pain Management, University Medical Center Maribor, Maribor, Slovenia;
3. Faculty of Medicine, Centre for Medical Education, University of Maribor, Maribor, Slovenia;
4. Clinic for Gynecology and Perinatology, University Medical Center Maribor, Maribor, Slovenia;
5. Clinic for Internal Medicine, University Medical Center Maribor, Maribor, Slovenia