1. Radiological and Anatomo-Pathological and Oncological Sciences, Univ. Sapienza, Rome
2. Brandenburg Institute for Clinical Ultrasound at Medical University Brandenburg, Neuruppin, Germany and Department of Internal Medicine, Krankenhaus Märkisch Oderland, Strausberg, Germany
3. Department Allgemeine Innere Medizin (DAIM) Kliniken Hirslanden Beau Site, Salem und Permanence, Bern, Switzerland
4. Department of Radiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
5. Division of Internal Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy