| AXL | AXL receptor tyrosine kinase |
| EGFR | Epidermal growth factor receptor |
| HNSCC | Head and neck squamous cell carcinoma |
| IHC | Immunohistochemistry |
| RTK | Receptor tyrosine kinase |
| SI | Average sample staining intensity |
| TMA | Tissue microarray |
| AXL | AXL receptor tyrosine kinase |
| EGFR | Epidermal growth factor receptor |
| HNSCC | Head and neck squamous cell carcinoma |
| IHC | Immunohistochemistry |
| RTK | Receptor tyrosine kinase |
| SI | Average sample staining intensity |
| TMA | Tissue microarray |