Research Article
PD-1/PD-L1 Inhibitors versus Chemotherapy for Previously Treated Advanced Gastroesophageal Cancer: A Meta-Analysis of Randomized Controlled Trials
Figure 5
Meta-analysis results of overall survival (OS) between the PD-1/PD-L1 inhibitor group and chemotherapy group. (a) All patients. (b) Squamous cell carcinoma subgroup. (c) Adenocarcinoma subgroup.
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