1. Department of Clinical Medicine and Surgery – Section of Infectious Diseases, University of Naples Federico II, Naples, Italy
2. University of Campania Luigi Vanvitelli, Italy
3. Department of Internal Medicine - Unit of Hepatology and Interventional Ultrasonography, OORR Area Stabiese Plesso Nuovo Gragnano, Naples, Italy
4. Infectious Diseases Unit, A.O. Caserta, Caserta, Italy