[1] Univ Naples Federico II, Gastroenterol Unit, Dept Clin Med & Surg, Naples, Italy
[2] Univ Naples Federico II, Dept Publ Hlth, Naples, Italy
[3] Cardarelli Hosp, Hepatol Unit, Naples, Italy
[4] Univ Campania Luigi Vanvitelli, Dept Med Surg, Neurol Geriatr & Metab Sci, Naples, Italy
[5] Univ Salerno, Dept Med & Surg, Salerno, Italy
[6] Rummo Hosp, Div Infect Dis, Benevento, Italy
[7] Univ Campania Luigi Vanvitelli, Dept Mental Hlth & Publ Med, Sect Infect Dis, Naples, Italy