Hypoxia induces expression of IL-7 in esophageal squamous cell carcinoma to promote tumor progression 
CHEN Jie, WANG Yan, ZHANG Weimin, ZHAO Di, ZHANG Lingyuan, ZHAN Qimin
China Oncology . 2021, (5): 361 -367 .  DOI: 10.19401/j.cnki.1007-3639.2021.05.001