抽象的な
The threat of air pollution in Asia.
Anirban Sukul
Chronic Obstructive Pulmonary Disease (COPD) is a serious respiratory disease which involves lungs and respiratory tract, exerts both chronic and acute symptoms like emphysema and chronic bronchitis resulting into the respiratory distress. This change in the respiratory tract and lungs is caused by the inhalation of polluted air from the environment.
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