| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| cochrane study mask effectiveness covid | 0.51 | 0.1 | 5300 | 76 | 39 |
| cochrane | 0.78 | 0.1 | 7039 | 88 | 8 |
| study | 1.67 | 0.1 | 2751 | 1 | 5 |
| mask | 1.08 | 0.3 | 5597 | 26 | 4 |
| effectiveness | 1.15 | 0.2 | 739 | 81 | 13 |
| covid | 0.47 | 0.5 | 6408 | 22 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| cochrane study mask effectiveness covid | 1.19 | 0.3 | 5850 | 85 |
