Epidemiological studies may show effectiveness.Logical formLearned from3 sentences. (Program implementation) may manifest effectiveness.Logical formLearned from3 sentences. (Effectiveness data) can be from trials.Logical formLearned from3 sentences. Understanding may concern effectiveness.Logical formLearned from3 sentences. Programs may demonstrate effectiveness.Logical formLearned from3 sentences. Standards of effectiveness of drugs may undergo maintenance.Logical formLearned from3 sentences. Chemical molecules may increase effectiveness of vaccines.Logical formLearned from3 sentences. Programs may be evaluated for effectiveness.Logical formLearned from3 sentences. A clinical trial may assess effectiveness of selegiline.Logical formLearned from3 sentences. Selegiline may manifest effectiveness.Logical formLearned from3 sentences. Evidence of effectiveness can be a component of an assessment.Logical formLearned from3 sentences. Problems may undermine effectiveness of a model.Logical formLearned from3 sentences. A measure may diminish effectiveness of a program.Logical formLearned from3 sentences. A second can be effectiveness of (surveillance efforts).Logical formLearned from3 sentences. (Surveillance efforts) may manifest effectiveness.Logical formLearned from3 sentences.