| ECOG | Eastern Cooperative Oncology Group |
| ESMO | European Society for Medical Oncology |
| GC | gastric cancer |
| GR | gastric resection |
| LM | liver metastasis |
| LMGC | gastric cancer with liver metastasis |
| NCCN | National Comprehensive Cancer Network |
| SD | standard deviation |
| SR | synchronous resection |