Results can be experimental.Logical formLearned from8 154 sentences. Work can be experimental.Logical formLearned from3 494 sentences. Studies can be experimental.Logical formLearned from2 759 sentences. Evidence can be experimental.Logical formLearned from2 703 sentences. A drug can be experimental.Logical formLearned from2 001 sentences. Conditions can be experimental.Logical formLearned from1 838 sentences. A program can be experimental.Logical formLearned from1 581 sentences. A treatment can be experimental.Logical formLearned from1 422 sentences. A basis can be experimental.Logical formLearned from1 373 sentences. Drugs can be experimental.Logical formLearned from1 284 sentences. Approaches can be experimental.Logical formLearned from1 116 sentences. An approach can be experimental.Logical formLearned from1 115 sentences. A vaccine can be experimental.Logical formLearned from1 105 sentences. Treatments can be experimental.Logical formLearned from919 sentences. A procedure can be experimental.Logical formLearned from915 sentences.