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Pulmonary Disease, Chronic Obstructive
Airway Obstruction
Obstructive Lung Diseases
Asthma
Spirometry
Administration, Inhalation
Respiratory Function Tests
Hospitalization
Treatment Outcome
Time Factors
Treatment Failure
Drug Administration Schedule
Lung Volume Measurements
Forced Expiratory Volume
Ipratropium
Triamcinolone
Bronchodilator Agents
Anti-Inflammatory Agents
Smoking
Smoking Cessation
Co-Publications
4
3
2
1
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