This animation describes the causes, risk factors and common symptoms of chronic obstructive pulmonary disease (COPD), as well as how lungs with COPD function. To learn more visit: [ Ссылка ]
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This animation describes the causes, risk factors and common symptoms of chronic obstructive pulmonary disease (COPD), as well as how lungs with COPD function. To learn more visit: [ Ссылка ]