| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| heart layers epicardium | 1.92 | 0.4 | 324 | 33 | 23 |
| heart | 1.85 | 0.5 | 8596 | 19 | 5 |
| layers | 0.99 | 0.3 | 6862 | 68 | 6 |
| epicardium | 1.69 | 0.8 | 90 | 15 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| heart layers epicardium | 1.42 | 0.2 | 5587 | 13 |
| heart layers pericardium | 0.28 | 1 | 193 | 36 |
| epicardium layer of the heart | 1.91 | 0.9 | 7544 | 71 |
| which layer of the heart is the epicardium | 0.49 | 0.6 | 9094 | 47 |
| layers of the heart and pericardium | 0.73 | 0.7 | 2181 | 90 |
| is the pericardium a layer of the heart | 1.79 | 0.1 | 3185 | 71 |
| layers of the pericardium and heart wall | 1.5 | 0.6 | 58 | 6 |
