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Pulmonary Disease, Chronic Obstructive
Pulmonary Emphysemas
Emphysema
Respiratory Function Tests
Pneumonectomy
X Ray Computed Tomography
Exercise Test
Oxygen Inhalation Therapy
Forced Expiratory Volume
Total Lung Capacity
Lung Volume Measurements
Vital Capacity
Lung
Exercise Tolerance
Cohort Studies
Treatment Outcome
Severity of Illness Index
Risk Factors
Quality of Life
Smoking
Co-Publications
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