Chronic obstructive pulmonary disease (COPD) is a degenerative lung disease that causes obstructed airflow from the lungs and difficulty breathing. Ã÷Éý²©²Ê 16 million Americans have been diagnosed with COPD, but...
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An occasional cough helps clear irritants and secretions from your lungs and prevents infection. But if you develop a chronic cough that persists for weeks, you should find out if...
