Narrowing of airways due to muscle contraction, Bronchospasm, Chronic inflammatory disease of airways, Asthma, Swelling of airway lining, Airway inflammation, Physical trigger causing symptoms, Exercise, Environmental irritants, Air Pollution, Dust, pollen exposure, Allergens, Solidification of lung tissue, Lung Consolidation, Invasion of microorganisms, Infection, Common infectious agent for pmeumonia, Bacteria, Progressive airflow limitation disease, COPD, Alveolar destruction, Emphysema, Chronic productive cough, Chronic bronchitis, Area between lung and chest wall10, Pleural space, Presence of air in pleural space, Pneumothorax, Loss of Lung expansion, Lung collapse

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