| Similarity | Rank | |
|---|---|---|
| a_number_of_study | 0.855 | 86189 |
| several_study_have | 0.761 | 91485 |
| early_study | 0.725 | 54536 |
| recent_study | 0.711 | 70985 |
| previous_study | 0.676 | 34650 |
| a_recent_study | 0.673 | 42177 |
| previous_research | 0.633 | 59652 |
| experimental_study | 0.630 | 73083 |
| the_current_study | 0.629 | 34412 |
| in_a_recent_study | 0.623 | 94165 |
| One_study | 0.619 | 62897 |
| research_study | 0.614 | 20561 |
| the_present_study | 0.610 | 44128 |
| study | 0.605 | 119 |
| additional_study | 0.594 | 96913 |
| a_pilot_study | 0.593 | 77809 |
| al._(_[number]_) | 0.593 | 28019 |
| study_conduct_by | 0.591 | 84029 |
| study_examine | 0.589 | 53691 |
| epidemiological_study | 0.589 | 74728 |
| recent_research | 0.587 | 58384 |
| this_study | 0.585 | 4520 |
| a_new_study | 0.585 | 33430 |
| pilot_study | 0.584 | 46260 |
| conduct_study | 0.583 | 76793 |