| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| observational study bio | 1.52 | 0.2 | 6447 | 52 | 23 |
| observational | 0.01 | 0.3 | 5914 | 89 | 13 |
| study | 0.05 | 0.8 | 1775 | 7 | 5 |
| bio | 1.44 | 0.7 | 6519 | 98 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| observational study bias | 1.18 | 0.6 | 7733 | 82 |
| observational study wikipedia | 1.77 | 0.6 | 2136 | 5 |
| observational study of birds | 1.96 | 0.6 | 7582 | 20 |
| observational study of historical events | 0.43 | 0.1 | 7040 | 86 |
| observational study of hydroxychloroquine | 1.54 | 0.1 | 5429 | 59 |
| observational study definition biology | 1.82 | 0.6 | 9103 | 42 |
| biographic & biomorphic observational study | 1.74 | 0.9 | 2957 | 59 |
| observational study risk of bias assessment | 1.99 | 1 | 6695 | 55 |
| scientific study of birds | 1.94 | 1 | 4775 | 65 |
| the study of birds | 0.29 | 0.2 | 4540 | 7 |
| study of birds ornithology | 0.52 | 0.6 | 2603 | 93 |
| study of zoology birds | 0.49 | 0.2 | 4867 | 71 |
| the study of birds is called ornithology | 1.18 | 0.6 | 6626 | 9 |
| study of birds called | 0.21 | 0.5 | 836 | 54 |
| study of birds nests | 1.84 | 1 | 6941 | 72 |
| what is bird study called | 0.45 | 0.4 | 5189 | 58 |
| in an observational study | 1.44 | 0.4 | 2068 | 88 |
| a scientist that studies birds | 1.62 | 0.4 | 1727 | 99 |
| what type of scientist studies birds | 1.44 | 1 | 4906 | 79 |
| the person who studies about birds | 0.88 | 0.3 | 9793 | 13 |
