[1] Capital Med Univ, Natl Clin Res Ctr Digest Dis, Beijing Friendship Hosp,Liver Res Ctr, Key Lab Translat Med Cirrhosis, Beijing, Peoples R China
[2] Peoples Liberat Army Gen Hosp, Med Ctr 5, Beijing, Peoples R China
[3] Dalian Med Univ, Affiliated Hosp 2, Beijing, Peoples R China
[4] Qinghai Prov Peoples Hosp, Xining, Qinghai, Peoples R China
[5] First Peoples Hosp Qinzhou, Qinzhou, Peoples R China
[6] Shanxi Yuncheng Cent Hosp, Yuncheng, Shanxi, Peoples R China
[7] Dalian Med Univ, Affiliated Hosp 2, Dalian, Peoples R China