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医药科学 病理学 The airflow limitation is usually progressive. The pathogenesis of COPD is complicated and its pathobiology involve s multilevel structures in the lung, including central and peripheral airways, lung parenchyma,even blood vessel, which is regarded as inreversible. COPD以不完全可逆的气流受限为特征,病情呈进行性发展,其发病机制复杂,病理学改变则累及肺脏的多级结构,包括中央及周围的气道、肺实质乃至肺血管。 病理生物学
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