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Comparison of diagnostic accuracy among 3 different endoscopic techniques after excluding lesions with inadequate images.
| Correct | Error | Accuracy | |
|---|---|---|---|
| Conventional endoscopy | 135 | 28 | 82.8%A |
| Magnifying endoscopy | 137 | 23 | 85.6%B |
| EUS | 127 | 15 | 89.4%C |
P = 0.4897 (A versus B), P = 0.3188 (B versus C), P = 0.0978 (A versus C).
