An efficacy of treatment can be unknown.Logical formLearned from2 sentences. Doubts can be about an efficacy of a war.Logical formLearned from2 sentences. An efficacy of drugs can be questionable.Logical formLearned from2 sentences. An efficacy can be weak.Logical formLearned from2 sentences. An efficacy can be in mice.Logical formLearned from2 sentences. Efficacy can be over placebo.Logical formLearned from2 sentences. Efficacy may be proven.Logical formLearned from2 sentences. Empirical evidence can be constituted-of-or-filled-with efficacy.Logical formLearned from2 sentences. An efficacy can be for patients.Logical formLearned from2 sentences. Efficacy can be in teams.Logical formLearned from2 sentences. Efficacy can be against (ultraviolet a).Logical formLearned from2 sentences. (Vaccine efficacy) may undergo an estimation.Logical formLearned from2 sentences. An efficacy can be impaired.Logical formLearned from2 sentences. An efficacy can be painful.Logical formLearned from2 sentences. An efficacy may pertain-to a greek fire.Logical formLearned from2 sentences.