1. Division of Gastroenterology and Hepatology Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico Milan Italy
2. Department of Biomedical Sciences for Health University of Milan Milan Italy
3. DG Welfare Lombardy Region Milan Italy
4. Division of Infectious and Tropical Diseases, Department of Clinical and Experimental Sciences AAST Spedali Civili Brescia Italy
5. Division of Infectious Diseases ASST GOM Niguarda Milan Italy
6. Department of Medicine University of Milan Bicocca Milan Italy
7. Division of Gastroenterology, Hepatology and Transplantation ASST Papa Giovanni XXIII Bergamo Italy
8. Division of Infectious Diseases ASST Fatebenefratelli Sacco Milan Italy
9. Division of Infectious Diseases ASST Mantova Mantova Italy
10. Division of Infectious Diseases IRCCS San Matteo di Pavia Pavia Italy
11. Quality Unit Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico Milan Italy
12. Microbiology and Virology Laboratory ASST Papa Giovanni XXIII Bergamo Italy
13. Department of Pathophysiology and Transplantation CRC “A. M. and A. Migliavacca” Centre for Liver Disease, University of Milan Milan Italy