[1] Alfred Hosp, Melbourne, Vic, Australia
[2] Hosp Univ Vall dHebron, Barcelona, Spain
[3] Queen Mary Univ London, London, England
[4] Hosp Univ Puerta De Hierro, Madrid, Spain
[5] Dayanand Med Coll & Hosp, Ludhiana, Punjab, India
[6] Russian Acad Med Sci, Moscow, Russia
[7] Karolinska Univ Hosp, Dept Infect Dis, Stockholm, Sweden
[8] Gilead Sci Inc, 353 Lakeside Dr, Foster City, CA 94404 USA
[9] Denver Hlth Med Ctr, Denver, CO USA
[10] Hosp Univ Virgen De Valme, Seville, Spain
[11] St Vincents Hosp Melbourne, Dept Gastroenterol, Melbourne, Vic, Australia
[12] Vall Dhebron Univ Hosp, Dept Internal Med, Liver Unit, Barcelona, Spain
[13] Osped Casa Sollievo Sofferenza, IRCCS, San Giovanni Rotondo, Italy