| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| cochrane library mask review | 0.57 | 0.9 | 4336 | 34 | 28 |
| cochrane | 1.31 | 0.9 | 320 | 85 | 8 |
| library | 1.52 | 0.1 | 3642 | 100 | 7 |
| mask | 1.99 | 0.3 | 8243 | 24 | 4 |
| review | 1.19 | 0.3 | 4375 | 21 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| cochrane library mask review | 1.03 | 1 | 4446 | 76 |
