1 Department of Clinical Medicine and Surgery, Gastroenterology and Hepatology Unit, University of Naples "Federico II", Naples, Italy.
2 Department of Clinical Medicine and Surgery, Gastroenterology and Hepatology Unit, University of Naples "Federico II", Naples, Italy. Electronic address: [email protected].
3 Hepatology Unit, AORN A. Cardarelli, Naples, Italy.
4 Department of Translational Medical Science, University of Naples "Federico II", Naples, Italy.