1. Gastroenterology Unit, Department of Biomedical and Clinical Sciences, "L.Sacco" University Hospital, Milano, Italy
2. Department of Medicine, University of Bergen, Bergen, Norway
3. Department Allgemeine Innere Medizin, Kliniken Hirslanden Beau-Site, Salem und Permanence, Bern, Switzerland
4. Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Roma, Italy
5. Department of Gastroenterology, University of Medicine and Pharmacy, Victor Babes Timisoara, Timisoara, Romania
6. Department of Gastroenterology, Universitatea de Vest din Timisoara, Timisoara, Romania
7. Brandenburg Institute for Clinical Ultrasound (BICUS) – Medical University Brandenburg “Theodor Fontane”, Faculty of Medicine and Philosophy and Faculty of Health Sciences Brandenburg, Neuruppin, Germany
8. Gastroenterology and Internal Medicine, Rems-Murr-Klinikum Winnenden, Winnenden, Germany
9. Department of Radiology, Radiologia 1, Hospital of Cremona, Cremona, Italy
10. Internal Medicine and Gastroenterology, University of Bologna, Hospital of Bologna Sant’Orsola-Malpighi Polyclinic, Bologna, Italy
11. Translational Gastroenterology Unit, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
12. 3rd Medical Department, University of Medicine and Pharmacy, Cluj-Napoca, Romania
13. Haukeland University Hospital, Haukeland University Hospital, and Department of Clinical Medicine, University of Bergen, Bergen, Norway