| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| chemical symbol for serotonin | 0.77 | 0.9 | 5192 | 4 | 29 |
| chemical | 0.31 | 0.3 | 6332 | 24 | 8 |
| symbol | 1.99 | 0.5 | 2049 | 2 | 6 |
| for | 1.96 | 0.3 | 2595 | 40 | 3 |
| serotonin | 1.82 | 0.3 | 4130 | 47 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| chemical symbol for serotonin | 1.66 | 0.5 | 6321 | 91 |
