| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| is the cdc a primary source | 1.57 | 0.7 | 5551 | 92 |
| is the cdc a primary or secondary source | 0.57 | 0.2 | 8308 | 89 |
| is the cdc considered a primary source | 0.03 | 0.7 | 8244 | 67 |
| is the cdc website a primary source | 1.57 | 0.9 | 730 | 31 |
| cdc primary cesarean section rate 2021 | 0.34 | 0.5 | 3424 | 82 |
| is the cdc a secondary source | 1.18 | 0.1 | 3399 | 29 |
| is the cdc a news source | 1.63 | 0.5 | 4268 | 17 |
| is the cdc an academic source | 0.5 | 0.1 | 686 | 33 |
| is the cdc a reputable source | 0.7 | 0.3 | 3189 | 48 |
| is the cdc a scholarly source | 1.51 | 0.4 | 9186 | 30 |
| is the cdc a credible source | 0.75 | 0.5 | 8530 | 43 |
| is the cdc considered a scholarly source | 0.59 | 0.7 | 3246 | 3 |
| what makes the cdc a credible source | 1.14 | 0.5 | 891 | 2 |
| is the cdc a reliable source | 0.43 | 0.9 | 3858 | 53 |
| cdc core data sources | 0.45 | 0.9 | 8362 | 94 |
| why does the cdc exist | 0.92 | 0.7 | 4080 | 62 |
| why was the cdc formed | 1.98 | 0.5 | 6158 | 32 |
| cdc source control healthcare | 1.16 | 0.2 | 3943 | 99 |
| all of these are considered primary sources | 1.86 | 0.3 | 1143 | 38 |
