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Title: Chronic Pulmonary Disease, Illustration
Caption: Illustration of chronic obstructive pulmonary disease (COPD), a common lung disease where breathing is difficult. There are two main forms of COPD: Chronic bronchitis, whose symptoms include a long-term cough with mucus) (inset left) and emphysema (the gradual breakdown of the lungs) (inset right). Most people with COPD have a combination of both forms. COPD is caused by noxious particles or gas, most commonly from tobacco smoking, which triggers an abnormal inflammatory response in the lung.
Credit: Album / Science Source / Monica Schroeder
Image size: 4200 × 4200 px | 50.5 MB
Print size: 35.6 × 35.6 cm | 1653.5 × 1653.5 in (300 dpi)