| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| who started stem cell research | 1.5 | 0.1 | 6135 | 45 |
| when did stem cell research become known | 1.32 | 0.5 | 1901 | 34 |
| history stem cell research | 1.72 | 1 | 705 | 7 |
| when was stem cell research discovered | 0.85 | 0.9 | 1356 | 52 |
| who found stem cells | 0.03 | 0.9 | 7546 | 23 |
| article on stem cell research history | 0.81 | 0.1 | 6920 | 3 |
| who discovered stem cells | 0.01 | 0.9 | 798 | 87 |
| who discovered stem cell therapy | 1.84 | 0.7 | 6496 | 1 |
| who created stem cell therapy | 0.77 | 0.7 | 6875 | 34 |
| who invented stem cell therapy | 0.45 | 1 | 5178 | 94 |
| recent stem cell research discoveries | 0.34 | 0.3 | 9023 | 51 |
| proponents of stem cell research | 1 | 0.1 | 8721 | 57 |
| stem cell research scientist | 0.31 | 0.2 | 7396 | 53 |
| history of stem cell | 1.18 | 0.7 | 3869 | 32 |
| discovery of stem cells | 1.54 | 0.8 | 8182 | 29 |
