| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| location of respiratory center | 0.26 | 0.1 | 6272 | 66 | 30 |
| location | 1.2 | 0.8 | 8909 | 73 | 8 |
| of | 1.29 | 0.5 | 244 | 95 | 2 |
| respiratory | 1.16 | 0.1 | 7008 | 66 | 11 |
| center | 1.51 | 0.5 | 1468 | 60 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| location of respiratory center | 0.33 | 0.1 | 7016 | 81 |
