JEANETTE ENGQVIST / SCIENCE PHOTO LIBRARY JEANETTE ENGQVIST / SCIENCE PHOTO LIBRARY
Computer illustration of female patient suffering from shortness of breath caused by chronic obstructive pulmonary disease (COPD). COPD is a type of obstructive lung disease characterised by chronically poor airflow. It is typically caused by noxious particles or gas, most commonly from tobacco smoking, which trigger an abnormal inflammatory response in the airways.
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