| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| membranes around heart | 1.3 | 0.8 | 6841 | 42 | 22 |
| membranes | 1.62 | 0.9 | 3487 | 41 | 9 |
| around | 1.54 | 1 | 5587 | 68 | 6 |
| heart | 0.13 | 0.6 | 1080 | 86 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| membranes around heart | 1.39 | 0.4 | 8058 | 81 |
| membrane around heart called | 1.11 | 0.9 | 6759 | 55 |
| what is the membrane around the heart called | 0.22 | 0.6 | 6504 | 38 |
