| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| artificial heart invention year | 0.84 | 0.9 | 6723 | 7 | 31 |
| artificial | 0.14 | 0.7 | 8087 | 69 | 10 |
| heart | 0.87 | 0.3 | 4991 | 40 | 5 |
| invention | 1.06 | 0.8 | 3503 | 31 | 9 |
| year | 1.92 | 0.8 | 9962 | 2 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| artificial heart invention year | 1.95 | 0.2 | 5738 | 13 |
| when was the first artificial heart created | 1.1 | 0.2 | 1606 | 79 |
| who made the first artificial heart | 1.24 | 0.2 | 7290 | 15 |
| who created the artificial heart | 0.69 | 0.8 | 4634 | 14 |
| why was the artificial heart invented | 1.25 | 0.3 | 402 | 32 |
| the first artificial heart | 1.7 | 0.8 | 8586 | 85 |
| first artificial heart patent | 1.06 | 0.8 | 391 | 92 |
| where was the first artificial heart made | 1.6 | 0.4 | 4078 | 13 |
| who received the first artificial heart | 0.59 | 0.8 | 4523 | 44 |
| first artificial heart implanted | 1.94 | 0.7 | 421 | 3 |
| facts about the artificial heart | 1.74 | 0.3 | 782 | 38 |
| first permanent artificial heart | 1.62 | 0.3 | 9482 | 58 |
