An efficacy can be therapeutic.Logical formLearned from399 sentences. An efficacy can be long-term.Logical formLearned from277 sentences. An efficacy can be causal.Logical formLearned from251 sentences. An efficacy can be proven.Logical formLearned from194 sentences. An efficacy may pertain-to a drug.Logical formLearned from170 sentences. An efficacy can be high.Logical formLearned from169 sentences. An efficacy may pertain-to an approach.Logical formLearned from168 sentences. An efficacy may pertain-to a treatment.Logical formLearned from121 sentences. An efficacy may pertain-to a program.Logical formLearned from120 sentences. An efficacy may pertain-to a vaccine.Logical formLearned from117 sentences. An efficacy can be protective.Logical formLearned from115 sentences. An efficacy may pertain-to a product.Logical formLearned from109 sentences. An efficacy may pertain-to a system.Logical formLearned from99 sentences. Studies may support an efficacy.Logical formLearned from94 sentences. An efficacy can be in reducing side effects of a snakebite.Logical formLearned from93 sentences.