Fig. 5From: Expression of PD-L1 through evolution phase from pre-invasive to invasive lung adenocarcinomaPD-L1 expression of different adenocarcinoma subtype. A The percentages of PD-L1-positive (≥ 1%) samples and PD-L1-strongly-positive (≥ 50%) samples increased in solid dominant subtype, B PD-L1 expression level increased in micropapillary, solid and mucinous dominant subtype (*p < 0.05, **p < 0.01),Back to article page