Paras Hospitals | पारस हॉस्पिटल गुरुग्राम | paras hospital gurgaon
Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory lung disease that causes obstructed airflow from the lungs.
Symptoms include breathing difficulty, cough, mucus (sputum) production and wheezing.
To know more click here: https://www.youtube.com/watch?v=NdlNWBZFgFg
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