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| PCR | Saline gradient n (%) | Total n (%) | |
|---|---|---|---|
| P | N | ||
| P | 7 | 4 | 11 (64.7) |
| N | 2 | 4 | 6 (35.3) |
| Total | 9 (52.9) | 8 (47.1) | 17 (100) |
N: negative; P: positive.
