"Systematic Reviews." . . "Pneumonectomy Review." . . "Literature-Based Reviews." . . "Canada." . . "Disease Management." . . "Risk Factors Review." . . "Pulmonary Emphysema." . . . . . . . . . . . . . . . . . . . . . "Comparison of lung volume reduction surgery with medical management for emphysema"@en . . . "Comparison of lung volume reduction surgery with medical management for emphysema" . . . . . . . "Review" . . "Comparative Studies." . . "surgery (qualifier)" . . "Outcomes." . . "Treatment Outcome Review." . . "Clinical Trials." . . . . "Pulmonary Emphysema surgery Review." . . "Pulmonary Emphysema therapy Review." . .