The clinicopathological characteristics of different gender in 305 OSCC patients.

<p>The clinicopathological characteristics of different gender in 305 OSCC patients.</p

The association between tumor PD-L1 expression and clinical parameters in 305 OSCC patients.

<p>The association between tumor PD-L1 expression and clinical parameters in 305 OSCC patients.</p

Univariate analysis of the influence of various parameters on overall survival in OSCC patients.

<p>Univariate analysis of the influence of various parameters on overall survival in OSCC patients.</p

Multivariate analysis of the influence of various parameters in PD-L1 on overall survival in OSCC patients.

<p>^agender, smoking, stage and grade were adjusted in multivariate analysis.</p><p>Multivariate analysis of the influence of various parameters in PD-L1 on overall survival in OSCC patients.</p