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肿瘤部位
Tumor localizations
| Localization | Frequency | Percent (%) |
| Right main bronchus | 13 | 10.1 |
| Right upper lobe bronchus | 17 | 13.2 |
| Intermediary bronchus | 12 | 9.3 |
| Right B6 | 23 | 17.8 |
| Right basal bronchi (B7-B10) | 15 | 11.6 |
| Left main bronchus | 9 | 7.0 |
| Left upper lobe bronchus | 6 | 4.7 |
| Left B4-B5 | 5 | 3.9 |
| Left B6 | 12 | 9.3 |
| Left basal bronchi (B7-B10) | 17 | 13.1 |
| Total | 129 | 100.0 |
