| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| pertinent negatives of copd | 1.1 | 0.4 | 4186 | 64 | 27 |
| pertinent | 1.67 | 0.3 | 1642 | 51 | 9 |
| negatives | 0.1 | 0.5 | 5497 | 58 | 9 |
| of | 0.9 | 0.3 | 5434 | 3 | 2 |
| copd | 0.51 | 0.3 | 5096 | 83 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| pertinent negatives of copd | 1.92 | 1 | 7285 | 30 |
