| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| ventilation perfusion mismatch copd | 1.61 | 0.7 | 3310 | 75 | 35 |
| ventilation | 0.23 | 0.8 | 4983 | 34 | 11 |
| perfusion | 1.09 | 0.6 | 2196 | 19 | 9 |
| mismatch | 1.4 | 0.1 | 752 | 27 | 8 |
| copd | 0.49 | 0.1 | 1702 | 38 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| ventilation perfusion mismatch copd | 0.36 | 0.5 | 102 | 81 |
