| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| observational study in clinical trials | 1.07 | 0.3 | 9968 | 24 | 38 |
| observational | 0.72 | 0.1 | 2755 | 54 | 13 |
| study | 0.4 | 0.8 | 7044 | 48 | 5 |
| in | 0.7 | 0.6 | 2823 | 9 | 2 |
| clinical | 1.3 | 0.9 | 6340 | 100 | 8 |
| trials | 0.97 | 0.3 | 4939 | 94 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| observational study in clinical trials | 1.58 | 0.9 | 1758 | 73 |
| is a clinical trial observational | 0.34 | 0.4 | 3669 | 28 |
| observational study in research | 0.96 | 0.8 | 510 | 58 |
| clinical trials and observations | 0.89 | 0.2 | 5155 | 90 |
| in an observational study | 0.97 | 0.3 | 8322 | 100 |
| observational study and experimental study | 0.96 | 1 | 6615 | 15 |
| definition of an observational study | 1.79 | 0.3 | 8396 | 75 |
| clinical observation in research | 0.01 | 1 | 6715 | 3 |
| what makes an observational study | 1.37 | 0.6 | 3573 | 99 |
| type of observational study | 1.03 | 0.4 | 5571 | 57 |
| meaning of observational study | 0.74 | 0.2 | 218 | 74 |
| observational study vs clinical trial | 0.7 | 0.9 | 8813 | 74 |
