| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| proceedings of the national academy sciences | 1.55 | 0.3 | 9979 | 58 | 44 |
| proceedings | 0.74 | 0.3 | 1066 | 31 | 11 |
| of | 1.84 | 0.6 | 2649 | 21 | 2 |
| the | 1.94 | 0.2 | 8961 | 89 | 3 |
| national | 0.25 | 0.1 | 8810 | 73 | 8 |
| academy | 0.45 | 0.1 | 7113 | 52 | 7 |
| sciences | 0.25 | 0.4 | 9626 | 39 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| proceedings of the national academy sciences | 1.65 | 1 | 4813 | 27 |
| proceeding of the national academy of science | 0.02 | 1 | 7596 | 16 |
| proceedings national academy of sciences usa | 0.61 | 0.9 | 4949 | 41 |
| journal proceedings national academy sciences | 0.77 | 0.6 | 7281 | 12 |
| proceeding of indian national science academy | 1.66 | 0.6 | 4030 | 72 |
| proceeding of national academy of sciences | 0.97 | 0.7 | 4676 | 11 |
| proceedings of national academy of science | 1.82 | 0.1 | 1319 | 3 |
| proceedings of the national academy of sci | 1.09 | 0.5 | 9626 | 9 |
| the national academy of science | 1.19 | 0.3 | 5904 | 85 |
| proceedings of the national academy of | 1.02 | 0.2 | 6233 | 32 |
| national academy of sciences united states | 1.47 | 0.8 | 8804 | 51 |
