| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| difference between copd and emphysema | 1.73 | 0.5 | 4698 | 46 | 37 |
| difference | 1.01 | 0.7 | 1902 | 57 | 10 |
| between | 1.39 | 0.4 | 140 | 51 | 7 |
| copd | 0.21 | 0.1 | 7061 | 40 | 4 |
| and | 1.74 | 0.1 | 5728 | 96 | 3 |
| emphysema | 0.37 | 0.8 | 7520 | 94 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| difference between copd and emphysema | 1.84 | 0.7 | 2838 | 40 |
