[1] Shenyang Mil Area, Gen Hosp, Dept Gastroenterol, Liver Cirrhosis Study Grp, Shenyang, Peoples R China
[2] Dalian Med Univ, Postgrad Coll, Dalian, Peoples R China
[3] Chengdu Mil Command, Gen Hosp, Dept Digest, Chengdu, Peoples R China
[4] Chengdu Mil Command, Dis Prevent & Control Ctr, Chengdu, Peoples R China
[5] Liaoning Univ Tradit Chinese Med, Postgrad Coll, Shenyang, Peoples R China