Blocking STAT3 signaling augments MEK/ERK inhibitor efficacy in esophageal squamous cell carcinoma Yazar: Zhen-Yuan Zheng, Man-Yu Chu, Wan Lin, Ya-Qi Zheng, Xiu-E Xu, Yang Chen, Lian-Di Liao, Zhi-Yong Wu, Shao-Hong Wang, En-Min Li, Li-Yan Xu