1. Gastroenterology Unit, Department of Biomedical and Clinical Sciences, “L. Sacco” University Hospital, Milan, Italy
2. National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, Norway
3. Radiology, Hospital Universitario Doctor Peset, Valencia, Spain
4. Gastroenterology Unit, Department of Systems Medicine, University of Rome Tor Vergata, Roma, Italy
5. Gastroenterologie und Innere Medizin, Rems-Murr-Klinikum Winnenden, Germany
6. Innere Medizin 2, Caritas-Krankenhaus, Bad Mergentheim, Germany
7. Department of Radiology, Hospital Barmherzige Brüder, Salzburg, Austria
8. Department of Gastroenterology and Hepatology, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
9. Research Center of Gastroenterology and Hepatology, University of Medicine and Pharmacy of Craiova, Romania
10. Ambulanzzentrum Gastroenterologie, Klinikum Lüneburg, Germany
11. Department of Medicine, Haukeland University Hospital, Bergen, Norway
12. Department of Radiology, Queen Alexandra Hospital, Portsmouth Hospitals NHS Trust, Portsmouth, United Kingdom of Great Britain and Northern Ireland
13. Gastroenterology, Ruppiner Kliniken, Neuruppin, Germany
14. Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Roma, Italy
15. Dept.of Radiology, Radiologia 1, Spedali Civili di Brescia, Italy
16. Interventional Ultrasound Unit, Department of Organ Failure and Transplantations, Sant’Orsola-Malpighi Hospital and University of Bologna, Italy
17. National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, and Department of Clinical Medicine, University of Bergen, Norway