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Table 4.
Diagnosis of CBDS by abdominal ultrasound with MRCP in the MRCP group
| ultrasonography | MRCP | Total | χ2/Z | P | |
|---|---|---|---|---|---|
| + | - | ||||
| + | 10 | 0 | 10 | -3.317 | 0.001 |
| - | 11 | 80 | 91 | ||
| Total | 21 | 80 | 101 | ||