| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| research approval letter sample | 1.75 | 0.3 | 3829 | 45 | 31 |
| research | 1.21 | 1 | 5747 | 52 | 8 |
| approval | 1.03 | 0.4 | 4155 | 8 | 8 |
| letter | 0.08 | 1 | 8665 | 84 | 6 |
| sample | 1.92 | 0.1 | 3576 | 45 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| research approval letter sample | 1.73 | 1 | 5935 | 14 |
