2013
COPD is common preventable and treatable disease, is characterized by persistent airflow limitation that is usually progressive and associated with and enhanced chronic inflammation response in the airway and lung to noxious particles or gases.
2017
COPD is common preventable and treatable disease, is characterized by persistent airflow limitation that is usually progressive and associated with and enhanced chronic inflammation response in the airway and lung to noxious particles or gases.
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