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Comparison of ultrasonic examination between two groups (cm, ¯x ± s)
| Groups | n | Width of main portal vein | Width of splenic vein | Thicknessof spleen |
| Consistent group | 97 | 1.20 ± 0.13 | 0.74 ± 0.12 | 4.02 ± 0.64 |
| Inconsistent group | 16 | 1.23 ± 0.12 | 0.77 ± 0.13 | 4.09 ± 0.62 |
