12-O-Tetradecanoylphorbol-13-Acetate Induces Up-Regulated Transcription of Variant 1 but Not Variant 2 of VIL2 in Esophageal Squamous Cell Carcinoma Cells via ERK1/2/AP-1/Sp1 Signa... oleh Xiao-Dan Zhang, Jian-Jun Xie, Lian-Di Liao, Lin Long, Yang-Min Xie, En-Min Li, Li-Yan Xu