5.
人工读片筛查肺癌结节（1 mm层厚）
Lung cancer nodules were screened by artificial reading (1 mm)
| Artificial reading piece | Lung nodules （n=250） |
No nodules （n=250） |
Total |
| Positive (detection) | 240 | 4 | 244 |
| Negative (not detected) | 10 | 246 | 256 |
| Total | 250 | 250 | 500 |
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