| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| how long is phd program in usa | 1.24 | 0.1 | 9129 | 63 |
| how many years is phd in usa | 1.65 | 0.8 | 1425 | 52 |
| how many years is a phd program | 0.55 | 0.6 | 7281 | 44 |
| how long is an md phd program | 0.4 | 0.2 | 5989 | 36 |
| phd duration in usa | 0.85 | 0.7 | 9544 | 35 |
| how long does a phd program take | 0.11 | 0.7 | 3124 | 53 |
| phd time duration in usa | 0.99 | 0.4 | 7033 | 43 |
| phd duration in us | 0.48 | 0.5 | 9545 | 11 |
| length of phd programs | 0.4 | 0.3 | 8011 | 92 |
| how many years is phd degree in usa | 1.35 | 0.4 | 2987 | 51 |
| how many years for phd after masters in usa | 0.08 | 0.9 | 4275 | 52 |
| how many years in a phd | 0.42 | 0.3 | 688 | 7 |
