| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| clinical trials register | 1.76 | 0.4 | 9780 | 34 | 24 |
| clinical | 0.34 | 0.1 | 2133 | 95 | 8 |
| trials | 1.53 | 0.3 | 5922 | 66 | 6 |
| register | 0.43 | 0.2 | 5669 | 26 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| clinical trials register | 0.77 | 0.8 | 3991 | 50 |
| clinical trials register eu | 0.49 | 0.9 | 9981 | 5 |
| clinical trials register search | 1.62 | 0.3 | 8739 | 56 |
| clinical trials register uk | 0.49 | 0.1 | 212 | 89 |
| clinical trials register usa | 0.94 | 1 | 5914 | 41 |
| clinical trials registry australia | 2 | 0.2 | 9764 | 77 |
| clinical trials register europe | 1.81 | 0.9 | 1745 | 34 |
| clinical trials registry | 0.77 | 0.6 | 2135 | 86 |
| european union clinical trials register | 1.07 | 0.1 | 7797 | 93 |
| german clinical trials register | 0.35 | 1 | 4746 | 98 |
| eudract clinical trials register | 1.2 | 0.2 | 4502 | 15 |
| gsk clinical trials register | 1.44 | 0.7 | 3305 | 17 |
| registered clinical trials | 1.75 | 0.2 | 1831 | 24 |
