(Efficacy data) may be based on (outcome variables).Logical formLearned from2 sentences. Some studies may establish an efficacy of (maintenance programs).Logical formLearned from2 sentences. An efficacy of a practice may be demonstrated in treatment of (marijuana dependence).Logical formLearned from2 sentences. Researcher may investigate an efficacy of therapy.Logical formLearned from2 sentences. Counseling may increase an efficacy of antidepressants.Logical formLearned from2 sentences. A trial may examine an efficacy of some (psychosocial treatments).Logical formLearned from2 sentences. Data may support an efficacy of a drug.Logical formLearned from2 sentences. Efficacy can be for treatment of (drug abuse).Logical formLearned from2 sentences. (Efficacy data) can be inconclusive.Logical formLearned from2 sentences. (Efficacy data) can be in a placebo.Logical formLearned from2 sentences. An efficacy may be knowned after trials.Logical formLearned from2 sentences. Trials may focuse on an efficacy.Logical formLearned from2 sentences. (Research interests) may include trials of efficacy of treatment of (drug abuse).Logical formLearned from2 sentences. Populations can be for an efficacy.Logical formLearned from2 sentences. Side effects may challenge an efficacy of a replication.Logical formLearned from2 sentences.