| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| plos one free publication | 0.28 | 0.9 | 5599 | 77 | 25 |
| plos | 0.29 | 0.2 | 1694 | 17 | 4 |
| one | 1.32 | 0.9 | 8421 | 19 | 3 |
| free | 1.61 | 0.5 | 1694 | 96 | 4 |
| publication | 1.5 | 1 | 6500 | 94 | 11 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| plos one free publication | 1.68 | 0.5 | 7324 | 24 |
