| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| causes of extrathoracic obstruction | 0.07 | 0.8 | 546 | 33 | 35 |
| causes | 0.71 | 0.3 | 8541 | 51 | 6 |
| of | 1.61 | 0.8 | 6055 | 26 | 2 |
| extrathoracic | 1.8 | 0.8 | 4798 | 30 | 13 |
| obstruction | 0.68 | 0.3 | 9916 | 5 | 11 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| causes of extrathoracic obstruction | 0.87 | 0.4 | 5172 | 83 |
