| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| historical background of alzheimer disease | 0.06 | 0.1 | 7073 | 8 | 42 |
| historical | 0.32 | 0.4 | 9545 | 12 | 10 |
| background | 1.99 | 0.8 | 56 | 11 | 10 |
| of | 1.12 | 0.9 | 5741 | 34 | 2 |
| alzheimer | 0.71 | 0.6 | 3299 | 65 | 9 |
| disease | 1.99 | 0.3 | 2940 | 86 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| historical background of alzheimer disease | 1.28 | 0.1 | 1148 | 51 |
