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Diseases that caused upper gastrointestinal bleeding
| Diseases | No. of patients |
| Gastric ulcer | 31 |
| Gastric cancer | 28 |
| Duodenal ulcer | 7 |
| Acute gastric mucosal lesion | 4 |
| Esophageal ulcer | 2 |
| Esophageal varix | 2 |
| Esophagitis | 1 |
| Gastric invasion of pancreatic cancer | 1 |
| Total | 76 |
