CHRISTIAN DARKIN / SCIENCE PHOTO LIBRARY CHRISTIAN DARKIN / SCIENCE PHOTO LIBRARY
Lung disease. Conceptual illustration of a pair of human lungs with one of them disintegrating, representing the effects of disease on the lungs. Examples of such diseases include infections such as pneumonia and tuberculosis, lung cancers caused by pollution and cigarette smoking, and conditions such as asthma and cystic fibrosis.
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