| Similarity | Rank | |
|---|---|---|
| Cohort | 0.808 | 68026 |
| cohorts | 0.797 | 29775 |
| population-based | 0.746 | 69592 |
| subgroup | 0.742 | 41839 |
| subgroups | 0.706 | 42984 |
| case-control | 0.696 | 83586 |
| multicenter | 0.689 | 69465 |
| HIV-infected | 0.686 | 50710 |
| randomized | 0.683 | 18214 |
| prospectively | 0.678 | 71458 |
| meta-analysis | 0.676 | 39189 |
| study | 0.674 | 508 |
| open-label | 0.667 | 89583 |
| undergraduates | 0.658 | 25809 |
| enrolled | 0.652 | 7810 |
| randomised | 0.651 | 46929 |
| college-age | 0.650 | 88600 |
| HAART | 0.648 | 85153 |
| VTE | 0.647 | 79880 |
| HIV-positive | 0.644 | 38882 |
| CLL | 0.632 | 87346 |
| all-cause | 0.631 | 92817 |
| placebo-controlled | 0.631 | 42426 |
| predictors | 0.629 | 41176 |
| CHD | 0.628 | 54234 |