| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| clinical trial registry number | 0.96 | 0.1 | 1370 | 96 | 30 |
| clinical | 0.38 | 0.2 | 8509 | 52 | 8 |
| trial | 1.54 | 1 | 7441 | 41 | 5 |
| registry | 1.41 | 0.2 | 4363 | 80 | 8 |
| number | 0.41 | 0.2 | 9989 | 82 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| clinical trial registry number | 0.02 | 1 | 7388 | 5 |
| list of clinical trial registries | 0.58 | 0.5 | 9058 | 90 |
| who clinical trial registry | 1.9 | 0.5 | 5317 | 75 |
| clinical trial registry australia | 1.57 | 0.8 | 9433 | 31 |
| registry of clinical trials | 1.55 | 0.9 | 720 | 26 |
| uk clinical trial registry | 0.53 | 0.5 | 7959 | 3 |
| canada clinical trial registry | 1.79 | 0.6 | 4230 | 64 |
| clinical trial number lookup | 1.45 | 0.4 | 9250 | 74 |
| register clinical trial gov | 1.05 | 0.9 | 9344 | 65 |
| how to obtain a clinical trial number | 1.94 | 1 | 9645 | 58 |
| clinical trials registry uk | 1.74 | 0.4 | 4289 | 57 |
| national clinical trials registry | 0.41 | 0.1 | 2832 | 44 |
| clinical trial for registration | 0.05 | 0.7 | 9646 | 1 |
| clinical trials registry usa | 0.68 | 0.7 | 2404 | 33 |
| clinicaltrials.gov registration number | 1.63 | 0.2 | 3157 | 44 |
| clinical trials register search | 1.97 | 0.3 | 6102 | 83 |
| clinicaltrials.gov registry | 0.2 | 0.9 | 8933 | 17 |
| registration of clinical trials | 0.78 | 0.3 | 1545 | 17 |
