[1] San Giuseppe Hosp, Milan, Italy
[2] Univ Roma La Sapienza, Rome, Italy
[3] Univ Naples, Naples, Italy
[4] Univ Palermo, Palermo, Italy
[5] Anmedeo Savoia Hosp, Turin, Italy
[6] IRCCS, San Giovanni Rotondo, Italy
[7] Hepatitis Diag & Therapy, Genoa, Italy
[8] Molinette Mauriziano Hosp, Turin, Italy
[9] Spedali Riuniti, Bergamo, Italy
[10] Roche SPA, Monza, Italy