| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| pubmed central database | 0.03 | 0.6 | 5944 | 6 | 23 |
| pubmed | 1.46 | 0.6 | 3090 | 91 | 6 |
| central | 0.18 | 0.6 | 9695 | 92 | 7 |
| database | 1.55 | 0.3 | 3158 | 67 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| pubmed central database | 1.7 | 0.6 | 2049 | 100 |
| pubmed central dataset | 0.66 | 0.4 | 2067 | 42 |
