| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| paco2 and etco2 gradient | 0.9 | 0.7 | 6136 | 68 | 24 |
| paco2 | 1.06 | 0.1 | 3321 | 100 | 5 |
| and | 1.57 | 0.7 | 2962 | 6 | 3 |
| etco2 | 0.99 | 0.7 | 2172 | 17 | 5 |
| gradient | 1.6 | 0.9 | 5006 | 13 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| paco2 and etco2 gradient | 1.71 | 0.1 | 6191 | 17 |
