| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| a ventilation perfusion mismatch occurs when | 1.89 | 0.7 | 6791 | 17 | 44 |
| a | 1.26 | 0.6 | 5784 | 7 | 1 |
| ventilation | 1.76 | 0.8 | 6292 | 85 | 11 |
| perfusion | 1.84 | 0.3 | 981 | 69 | 9 |
| mismatch | 0.68 | 0.8 | 3463 | 35 | 8 |
| occurs | 0.23 | 0.4 | 6615 | 96 | 6 |
| when | 0.37 | 0.4 | 8316 | 59 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| a ventilation perfusion mismatch occurs when | 0.49 | 0.1 | 5415 | 10 |
