[1] Peking Univ, Hlth Sci Ctr, Peoples Hosp, Hepatol Inst, Beijing, Peoples R China
[2] Univ Michigan, Div Gastroenterol & Hepatol, Ann Arbor, MI 48109 USA
[3] Peking Univ, Hlth Sci Ctr, Natl Ctr Int Cooperat Translat & Clin Res, Beijing, Peoples R China
[4] Ann Arbor VA Healthcare Syst, Gastroenterol Sect, Ann Arbor, MI USA
[5] Peking Univ, Hlth Sci Ctr, Dept Radiol, Peoples Hosp, Beijing, Peoples R China