Effect of gecko alcohol extract on human esophageal squamous carcinoma cell line EC9706 and anti-tumor activity in vivo Effect of baohuoside-I on Wnt/β-catenin signaling pathway of human esophageal carcinoma cell Eca-109 Effect of baohuoside-I on Wnt/β-catenin signaling pathway of human esophageal carcinoma cell Eca-109 Effects of ginsenoside Rh2(GS-Rh2) on cell cycle of Eca-109 esophageal carcinoma cell line