| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| pubmed database search engine | 0.67 | 1 | 6893 | 80 | 29 |
| pubmed | 0.14 | 0.1 | 6738 | 57 | 6 |
| database | 0.68 | 0.5 | 6834 | 92 | 8 |
| search | 1.63 | 0.2 | 6485 | 22 | 6 |
| engine | 1.09 | 0.6 | 7298 | 61 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| pubmed database search engine | 0.89 | 0.5 | 5551 | 22 |
