| Similarity | Rank | |
|---|---|---|
| longitudinal | 0.855 | 24616 |
| case-control | 0.790 | 83586 |
| population-based | 0.781 | 69592 |
| Longitudinal | 0.766 | 65702 |
| dose-response | 0.740 | 97933 |
| meta-analysis | 0.727 | 39189 |
| METHODS | 0.714 | 45074 |
| radiographic | 0.713 | 61422 |
| randomized | 0.712 | 18214 |
| observational | 0.711 | 28451 |
| cross-section | 0.711 | 32994 |
| ultrasonography | 0.703 | 80171 |
| qualitative | 0.703 | 14643 |
| longitudinally | 0.701 | 91531 |
| prospectively | 0.700 | 71458 |
| stratified | 0.700 | 51390 |
| tomography | 0.700 | 35237 |
| histological | 0.700 | 62947 |
| ANOVA | 0.699 | 78974 |
| multivariate | 0.696 | 49697 |
| measurement | 0.693 | 6043 |
| epidemiologic | 0.692 | 72423 |
| randomised | 0.691 | 46929 |
| resistivity | 0.690 | 83744 |
| fMRI | 0.688 | 55356 |