[1] Univ Hong Kong, Med Ctr, Dept Surg, Queen Mary Hosp, Hong Kong, Hong Kong, Peoples R China
[2] Univ Hong Kong, Med Ctr, Dept Pathol, Queen Mary Hosp, Hong Kong, Hong Kong, Peoples R China
[3] Univ Hong Kong, Ctr Liver Dis, Hong Kong, Hong Kong, Peoples R China