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Chronic obstructive pulmonary disease

Chronic obstructive pulmonary disease is an umbrella term for a group of respiratory tract[?] diseases that are characterised by airflow limitation.

Conditions grouped here are :

chronic bronchitis[?]
emphysema
bronchial asthma

(Formaly only:chronic bronchitis[?],enphysema[?] and small airways disease[?]

Common synonym : Chronic obstructive lung disease.

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