| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| tissues in the respiratory system | 1.66 | 0.2 | 8270 | 43 | 33 |
| tissues | 1.58 | 0.4 | 9681 | 98 | 7 |
| in | 1.69 | 0.7 | 9294 | 36 | 2 |
| the | 1.33 | 0.6 | 9843 | 11 | 3 |
| respiratory | 1.95 | 0.7 | 3290 | 53 | 11 |
| system | 0.19 | 0.9 | 9301 | 100 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| tissues in the respiratory system | 1.24 | 0.1 | 4635 | 27 |
