| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| risk factors of emphysema | 0.11 | 0.6 | 4061 | 39 | 25 |
| risk | 1.24 | 0.6 | 4843 | 3 | 4 |
| factors | 0.21 | 0.7 | 8970 | 74 | 7 |
| of | 0.25 | 0.9 | 9056 | 54 | 2 |
| emphysema | 0.33 | 0.4 | 589 | 9 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| risk factors of emphysema | 1.12 | 0.9 | 5094 | 95 |
