| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| nih clinical trials database | 1.18 | 0.4 | 1418 | 10 | 28 |
| nih | 1.01 | 0.6 | 8655 | 61 | 3 |
| clinical | 0.28 | 1 | 8459 | 20 | 8 |
| trials | 0.63 | 1 | 3302 | 90 | 6 |
| database | 1.47 | 0.6 | 1502 | 24 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| nih clinical trials database | 1.71 | 0.3 | 1654 | 22 |
| national clinical trials database | 0.28 | 0.2 | 9959 | 18 |
| nih clinical trials website | 1.35 | 0.5 | 7411 | 96 |
| nih clinical trials search | 0.51 | 0.3 | 4537 | 44 |
| database of clinical trials | 0.16 | 0.6 | 55 | 10 |
| nih and clinical trials | 0.99 | 0.8 | 144 | 35 |
| clinical trials at nih | 0.9 | 0.8 | 9806 | 8 |
| clinical trials database download | 0.54 | 0.4 | 4130 | 29 |
| us clinical trials database | 0.88 | 0.5 | 9620 | 76 |
| nih clinical trials list | 0.01 | 0.5 | 1521 | 44 |
| ongoing clinical trials database | 1.79 | 0.9 | 3595 | 30 |
| clinical trials uk database | 1.91 | 0.9 | 4566 | 94 |
| clinical trial investigator database | 0.53 | 0.9 | 33 | 6 |
| clinical trial site database | 1.69 | 0.2 | 9152 | 67 |
| nih clinical trial finder | 0.83 | 1 | 6181 | 11 |
| nih clinicaltrials.gov | 0.56 | 0.5 | 1679 | 65 |
