| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| variable extrathoracic obstruction causes | 1.9 | 1 | 8066 | 67 | 41 |
| variable | 0.29 | 0.9 | 1114 | 82 | 8 |
| extrathoracic | 1.44 | 1 | 741 | 21 | 13 |
| obstruction | 1.78 | 0.4 | 1599 | 44 | 11 |
| causes | 1.76 | 0.6 | 6135 | 55 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| variable extrathoracic obstruction causes | 1.08 | 1 | 2195 | 90 |
