| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| catamenial pneumothorax ncbi | 0.38 | 0.1 | 2916 | 77 | 28 |
| catamenial | 0.11 | 0.9 | 9273 | 85 | 10 |
| pneumothorax | 0.39 | 0.6 | 9682 | 70 | 12 |
| ncbi | 1.19 | 0.1 | 8013 | 9 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| catamenial pneumothorax ncbi | 0.47 | 0.9 | 6269 | 76 |
