| EC | Esophageal Cancer |
| EAC | Esophageal Adenocarcinoma |
| ESCC | Esophageal Squamous cell cancer |
| GC | Gastric cancer |
| GEJC | Gastroesophageal junction cancer |
| PD-1/PD-L1/2 | Programmed-cell death 1/Programmed-cell death-ligand 1/2 |
| CTLA-4 | Cytotoxic T-lymphocyte-associated antigen 4 |
| TME | Tumor Micro-Environment |
| CPS | Combined Positive Score |
| MSI | Microsatellite Instability |
| MSS | Microsatellite Stable |
| PFS | Progression-free survival |
| DFS | Disease-free survival |
| OS | Overall Survival |
| dMMR | Deficient MisMatch Repair |
| pCR | Pathologic complete response |
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