smelling cigarette smoke when there is none while pregnant The 8 Dangers of Smoking How Smoking Impacts Your Pregnancy

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Characteristics of lung cancer patients--the Shaukat Khanum Memorial experience

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Similar content being viewed by others Introduction Chronic obstructive pulmonary disease (COPD) is a common, preventable, and treatable condition characterized by persistent respiratory symptoms and airflow restriction caused by respiratory and/or alveolar abnormalities, usually caused by high exposure to harmful particles or gases [1]

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