A signal can be about an efficacy of a product.Logical formLearned from2 sentences. Rules may prohibit panels from reviewing an efficacy of a brand.Logical formLearned from2 sentences. An efficacy may pertain-to a switch.Logical formLearned from2 sentences. An efficacy may pertain-to vaccines.Logical formLearned from2 sentences. A measure of an efficacy may be issued.Logical formLearned from2 sentences. An efficacy can be robust.Logical formLearned from2 sentences. An efficacy of measures may be bear_outed in a case by a fact.Logical formLearned from2 sentences. An efficacy can be to echinacea.Logical formLearned from2 sentences. A technology may have some efficacy.Logical formLearned from2 sentences. An efficacy may pertain-to a band.Logical formLearned from2 sentences. A person may deliver a vote with efficacy.Logical formLearned from2 sentences. An efficacy may pertain-to a (government action).Logical formLearned from2 sentences. A correlation can be to efficacy.Logical formLearned from2 sentences. An efficacy can be unclear.Logical formLearned from2 sentences. An efficacy may pertain-to a central bank.Logical formLearned from2 sentences.