[1] Gilead Sci, Foster City, CA USA
[2] Queen Mary Hosp, Hong Kong, Hong Kong, Peoples R China
[3] Tokyo Med & Dent Univ, Gastroenterol & Hepatol, Tokyo, Japan
[4] China Med Univ Hosp, Div Hepatogastroenterol, Dept Internal Med, Taichung, Taiwan
[5] Univ Med & Pharm Gr T Popa, Inst Gastroenterol & Hepatol, Iasi, Romania
[6] Univ Clin Hosp 1, Moscow, Russia
[7] Istanbul Univ, Cerrahpassa Tip Fak Hastanesi, Infect Dis, Istanbul, Turkey
[8] Res & Educ Inc, San Diego, CA USA
[9] Prince Wales Hosp, Dept Med & Therapeut, Hong Kong, Hong Kong, Peoples R China