[Yang, Xue Feng; Fu, Nian; Zhou, Xu; Yang, XF; Xie, Ni; Liao, Hong Wu; Hu, Yang] Univ South China, Affiliated Nanhua Hosp, Dept Gastroenterol, Hengyang, Hunan, Peoples R China.
[Liao, DF; Liao, Duan-Fang] Hunan Univ Chinese Med, Sch Pharm, Key Lab Qual Evaluat Bulk Herbs Hunan Prov, Changsha, Hunan, Peoples R China.
[Ou, Wen Sheng] First Peoples Hosp Chenzhou, Dept Gastroenterol, Chenzhou, Hunan, Peoples R China.