Randomized trials may demonstrate efficacy.Logical formLearned from2 sentences. A randomized trial may undergo a completion.Logical formLearned from2 sentences. Randomized trials can be necessary.Logical formLearned from2 sentences. Participants can be in a randomized trial.Logical formLearned from2 sentences. Randomized trials may establish that something-is-the-case.Logical formLearned from2 sentences. Randomized controlled trials may confirm that something-is-the-case.Logical formLearned from2 sentences. Randomized clinical trials can be selected.Logical formLearned from2 sentences. A use of (dose-intensive chemotherapy regimen) may be restricted to randomized trials.Logical formLearned from2 sentences. Randomized trials may test an approach.Logical formLearned from2 sentences. Some randomized trials of folate may show an effect.Logical formLearned from2 sentences. Randomized clinical trials can be constituted-of-or-filled-with implants.Logical formLearned from2 sentences. Persons may perform a randomized controlled trial.Logical formLearned from2 sentences. Some randomized controlled trials may be took into consideration.Logical formLearned from2 sentences. Stimuli can be randomized.Logical formLearned from2 sentences. An (evaluation procedure) can be randomized.Logical formLearned from2 sentences.