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PD-L1 positivity in tumor cells versus tumor-infiltrating immune cells of different salivary gland carcinomas (n = 167).
| Tumor cells | |||
|---|---|---|---|
| PD-L1 negative (n = 139) | PD-L1 positive (n = 28) | ||
| Tumor-infiltrating immune cells | PD-L1 negative (n = 133) | 122 (73.0%) | 11 (6.6%) |
| PD-L1 positive (n = 34) | 17 (10.2%) | 17 (10.2%) | |
