| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| german clinical trials register | 1.06 | 1 | 364 | 8 | 31 |
| german | 0.31 | 0.6 | 939 | 77 | 6 |
| clinical | 0.73 | 0.2 | 6745 | 68 | 8 |
| trials | 0.11 | 0.8 | 4670 | 37 | 6 |
| register | 0.72 | 0.1 | 2433 | 48 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| german clinical trials register | 1.68 | 0.8 | 702 | 10 |
| german clinical trials register drks | 1.5 | 1 | 1937 | 63 |
| clinical trials register eu | 1.74 | 0.3 | 8948 | 52 |
| european clinical trials register | 0.03 | 0.6 | 3970 | 78 |
| register of clinical trials | 1.2 | 0.4 | 1690 | 55 |
| clinical trials register uk | 1.63 | 0.8 | 9259 | 2 |
| clinical trials register usa | 1.13 | 0.8 | 4881 | 89 |
| clinical trials register search | 1.81 | 0.9 | 8745 | 92 |
| registration of clinical trials | 1.39 | 0.6 | 7788 | 36 |
| european clinical trials registry | 1.14 | 0.5 | 9880 | 32 |
| clinical trial registry eu | 0.94 | 0.4 | 3937 | 59 |
| eu clinical trials registry | 1.06 | 0.1 | 9135 | 51 |
| eu clinical trial register search | 0.26 | 0.1 | 454 | 74 |
| uk clinical trial register | 0.16 | 0.6 | 3643 | 70 |
| clinical trial for registration | 1 | 0.8 | 2241 | 51 |
| clinicaltrialsregister.eu | 1.88 | 0.8 | 9046 | 64 |
| netherlands clinical trial registry | 1.18 | 0.2 | 5331 | 63 |
| clinical trial registration uk | 1.92 | 0.1 | 4788 | 100 |
