1. Department of Endocrinology and Internal Medicine; Medical University of Gdansk; Gdansk Poland
2. Department of Radiology; Medical University of Gdansk; Gdansk Poland
3. Department of Diagnostic Imaging and Interventional Radiology; Pomeranian Medical University; Szczecin Poland
4. Department of Nuclear Medicine; Medical University of Gdansk; Gdansk Poland
5. Department of Economic Sciences; Faculty of Management and Economics; Gdansk University of Technology; Gdansk Poland