| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| causes of extrathoracic airway obstruction | 1.12 | 0.5 | 3374 | 69 | 42 |
| causes | 1.18 | 0.2 | 75 | 66 | 6 |
| of | 1.95 | 0.9 | 6698 | 43 | 2 |
| extrathoracic | 1.14 | 0.8 | 7877 | 70 | 13 |
| airway | 0.84 | 0.9 | 5505 | 53 | 6 |
| obstruction | 1.19 | 0.6 | 379 | 94 | 11 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| causes of extrathoracic airway obstruction | 1.97 | 0.7 | 7784 | 45 |
