1. Radiology Department, University of Pavia, Italy and Department of Radiology University of Wisconsin Madison Wisconsin USA
2. Interventional Ultrasound Unit Pineta Grande Hospital Castel Volturno Italy
3. Department of Radiology Ronald Reagan UCLA Medical Center Los Angeles USA
4. Department of Radiology Federico II University Naples Italy
5. Department of Radiology Pineta Grande Hospital Castel Volturno Italy
6. Department of Radiology University of Wisconsin Madison Wisconsin USA