| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| lifespan development lumen learning citation | 1.36 | 1 | 9658 | 80 | 44 |
| lifespan | 1.12 | 0.3 | 466 | 91 | 8 |
| development | 1.81 | 0.8 | 8754 | 7 | 11 |
| lumen | 1.27 | 1 | 3397 | 33 | 5 |
| learning | 1.78 | 0.1 | 1844 | 96 | 8 |
| citation | 0.3 | 0.4 | 1594 | 77 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| lifespan development lumen learning citation | 0.37 | 0.7 | 8293 | 42 |
