| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| aminophylline vs theophylline levels | 1.77 | 1 | 602 | 56 | 36 |
| aminophylline | 0.23 | 1 | 6265 | 76 | 13 |
| vs | 1.67 | 0.8 | 3320 | 13 | 2 |
| theophylline | 1.32 | 0.9 | 6391 | 67 | 12 |
| levels | 1.4 | 0.4 | 860 | 74 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| aminophylline vs theophylline levels | 0.21 | 0.1 | 9035 | 6 |
