1. Faculty of Medicine, University of Rijeka, 51000 Rijeka, Croatia
2. Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
3. Faculty of Arts, University of Ljubljana, 1000 Ljubljana, Slovenia
4. Department of Endocrinology and Diabetology, University Hospital Centre, 51000 Rijeka, Croatia
5. Department of Internal Medicine, Faculty of Medicine, University of Rijeka, 51000 Rijeka, Croatia
6. Division of Surgery, Department of Abdominal Surgery, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
7. Department of Internal Medicine, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia