1. Department of Radiological Sciences, Oncology and Pathology, Policlinico Umberto I, University Sapienza, Rome, Italy
2. Medizinische Klinik 2, Caritas Krankenhaus Bad Mergentheim, Germany
3. Department of Ultrasonography, 3rd Medical Clinic, Institute of Gastroenterology and Hepatology Octavian Fodor; Imaging Department, University of Medicine and Pharmacy Iuliu Hatieganu, Cluj Napoca, Romania
4. Radiology Dept. “Iuliu Hatieganu” Univ. Med. Pharm. Cluj-Napoca, Romania
5. Dept. of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna General Hospital, Austria
6. Calle Francisco Silvela #124, lo 3 Madrid, Spain
7. Department of Gastroenterology, Brandenburg University of Medicine Theodor Fontane, Neuruppin, Germany
8. Department of Internal Medicine and Nephrology, Ultrasound Learning Center, Hirslanden Clinic, Zürich, Switzerland
9. Department of Radiology, King's College Hospital, London, UK
10. Diagnostic Radiology Institute, Paula Stradins Clinical University Hospital, Riga, Latvia
11. Unit of Internal Medicine, Department of Medical and Surgical Sciences, University of Bologna, Italy
12. Department of Radiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
13. Department of Radiology. Policlinico San Matteo, University Hospital, Pavia, Italy
14. National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen and Department of Clinical Medicine, University of Bergen, Norway