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| Characteristics | R0 | R1 |
|---|---|---|
| Combined group | 21 (100.0) | 0 (0.0) |
| Chemotherapy group | 26 (96.3) | 1 (3.7) |
| P value | 0.685 | 1.000 |
The classified variables were expressed by cases (%), and the chi-square test or Fisher exact probability method was used.
