Observed lesions | Effective | Percentage(%) |
Bilateral Distal TO | 47 | 29.8 |
Unilateral Proximal TO | 32 | 20.5 |
Bilateral Proximal TO | 25 | 16.0 |
Unilateral Distal TO | 22 | 10.9 |
Isthmic TO | 3 | 1.9 |