| DFS | Disease-free survival |
| ELISA | Enzyme-linked immunosorbent assay |
| HO-1 | Heme oxigenase-1 |
| OSCC | Oral squamous cell carcinoma |
| PK | Pyruvate kinase |
| POI | Pattern of invasion |
| PXDN | Peroxidasin |
| ROS | Reactive oxygen species |
| DFS | Disease-free survival |
| ELISA | Enzyme-linked immunosorbent assay |
| HO-1 | Heme oxigenase-1 |
| OSCC | Oral squamous cell carcinoma |
| PK | Pyruvate kinase |
| POI | Pattern of invasion |
| PXDN | Peroxidasin |
| ROS | Reactive oxygen species |