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The morphologic characteristics of the tracheal lesion treated
| LOCATION | TYPE | LENGTH | DEGREE OF STENOSIS |
|---|---|---|---|
| Subglottic (81) | Web-like (97) | < 1 cm (12) | < 30% (4) |
| Upper trachea (30) | Complex (18) | 1-3 cm (99) | 30-50% (57) |
| Mid and lower trachea (4) | > 3 cm (4) | 50-99%(56) | |
