A 65-year-old man, his wife, and 38-year-old son have been ...

Due to cigarette smoking or long term inhalation of noxious gases, the lungs become abnormally inflamed and alveoli become distended. COPD is a combination of emphysema, permanent enlargement of alveoli & alveolar wall destruction, and chronic bronchitis, a productive cough present for long periods of time. ................
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