Figure 4
From: The prognostic significance of PD-L1 expression in patients with glioma: A meta-analysis

Forest plot for the association between PD-L1 expression and OS in terms of subgroup analysis of the testing index.
From: The prognostic significance of PD-L1 expression in patients with glioma: A meta-analysis

Forest plot for the association between PD-L1 expression and OS in terms of subgroup analysis of the testing index.