| EMR | Endoscopic Mucosal Resection |
| ESD | Endoscopic submucosal dissection |
| LNM | Lymph node metastasis |
| LST | Lateral Spreading Tumor |
| NC-ESD | Non-curative ESD |
| POEM | PerOral Endoscopic Myotomy |
| SCC | Squamous cell carcinoma |
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