| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| difference between copd and emphysema | 0.98 | 0.1 | 8163 | 30 | 37 |
| difference | 0.41 | 0.3 | 9007 | 37 | 10 |
| between | 0.21 | 0.7 | 6243 | 34 | 7 |
| copd | 1.37 | 1 | 5664 | 38 | 4 |
| and | 1.25 | 0.3 | 790 | 8 | 3 |
| emphysema | 1.49 | 0.6 | 1933 | 74 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| difference between copd and emphysema | 0.99 | 0.5 | 8600 | 53 |
