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Complications in the intraoperative and postoperative phase
| Case | Submergence | Fibrosis of submucosa | Bleeding | Delayed bleeding | Stenosis |
| 1 | + | Moderate | Severe | + | – |
| 2 | + | Moderate | Severe | – | – |
| 3 | – | Moderate | Severe | + | – |
| 4 | – | Slight | None | – | – |
| 5 | – | Slight | None | – | – |
| 6 | – | Severe | None | – | + |
| 7 | + | Moderate | Severe | – | – |
| 8 | – | Slight | None | – | – |
| 9 | – | Slight | None | – | – |
| 10 | + | Slight | None | – | – |
| 11 | + | Severe | Severe | – | – |
