| CI | Confidence interval |
| CT | computed tomography |
| eCura | Endoscopic curability |
| EGC | Early gastric cancer |
| ESD | Endoscopic submucosal dissection |
| EUS | Endoscopic ultrasound |
| GI | Gastrointestinal |
| IHC | Immunohistochemical |
| LNM | Lymph node metastases |
| NPR | Norwegian patient registry |
| NUD | Non-numerical unstructured data |
| SM | Submucosal |
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