A study may provide evidence.Logical formLearned from663 sentences. Purposes may pertain-to a study.Logical formLearned from658 sentences. Studies can be under way.Logical formLearned from657 sentences. Studies can be quantitative.Logical formLearned from656 sentences. A study may suggest that something-is-the-case.Logical formLearned from651 sentences. Studies may find that something-is-the-case.Logical formLearned from651 sentences. Results can be from a study.Logical formLearned from646 sentences. Opportunities can be for study.Logical formLearned from637 sentences. Studies can be rigorous.Logical formLearned from635 sentences. Co-author may pertain-to a study.Logical formLearned from621 sentences. A study can be collaborative.Logical formLearned from620 sentences. Studies can be biological.Logical formLearned from618 sentences. A study may pertain-to an international-political-entity.Logical formLearned from616 sentences. Study may be needed.Logical formLearned from616 sentences. A study can be randomized.Logical formLearned from615 sentences.