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(a) Number of BCV sessions, (b) Final timing of BCV session of the second catheterization
| COPD | Restriction | |
|---|---|---|
| (a) Number of BCV sessions | ||
| 8 times | 2 | 1 |
| 9 | 1 | 1 |
| 10 | 4 | 3 |
| 11 | 3 | 0 |
| 12 | 1 | 0 |
| (b) Final timing of BCV session of the second catheterization | ||
| 1 day before | 6 | 2 |
| On the morning | 5 | 3 |
