Real-world retrospective controlled study of first-line standard chemotherapy combined with immune checkpoint inhibitor versus standard chemotherapy for advanced esophageal squamous cell carcinoma
YANG Lei, ZHANG Zhengfeng, WANG Dazhen, LOU Changjie
Journal of Practical Oncology . 2022, (6): 538 -543 .  DOI: 10.11904/j.issn.1002-3070.2022.06.009