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Respiratory system disorders are conditions that impair the normal functioning of the lungs and airways, affecting the process of breathing and oxygen exchange. One common disorder is Chronic Obstructive Pulmonary Disease (COPD), which is a progressive disease primarily caused by long-term exposure to irritants such as cigarette smoke, air pollution, ____ _______ ________ ____ _______ ______ ________ ____ _______ ____ ______ ______.
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