1. Department of Gastroenterology, University Hospital of Split, Spinciceva 1, 21000 Split, Croatia
2. Department of Gastroenterology, Hepatology and Clinical Nutrition, Clinical Hospital Dubrava, Avenija Gojka Suska 6, 10000 Zagreb, Croatia
3. School of Medicine, University of Zagreb, Salata 3, 10000 Zagreb, Croatia
4. Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovacica 1, 10000 Zagreb, Croatia
5. Department of Oncology and Radiotherapy, University Hospital of Split, Spinciceva 1, 21000 Split, Croatia
6. Department of Nuclear Medicine, University Hospital of Split, Spinciceva 1, 21000 Split, Croatia
7. Department of Abdominal Surgery, University Hospital of Split, Spinciceva 1, 21000 Split, Croatia
8. Department of Rheumatology and Immunology, University Hospital of Split, Soltanska 2, 21000 Split, Croatia
9. School of Medicine, University of Split, Soltanska 2, 21000 Split, Croatia
10. Department of Oncology and Radiotherapy, University Hospital Center Rijeka, Kresimirova 42, 51000 Rijeka, Croatia
11. School of Medicine, University of Rijeka, Brace Branchetta 20/1, 51000 Rijeka, Croatia