| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| usmle step 1 sample questions | 1.81 | 0.9 | 9550 | 68 |
| usmle step 1 sample questions explanations | 1.76 | 0.9 | 2703 | 73 |
| usmle step 1 sample questions pdf | 1.5 | 0.6 | 8323 | 95 |
| usmle step 1 sample questions 2018 | 0.99 | 0.2 | 1465 | 7 |
| usmle step 1 sample questions 2020 | 1.54 | 0.1 | 2815 | 66 |
| usmle step 1 sample questions free | 1.24 | 0.6 | 9723 | 39 |
