Objective To investigate the change in plasma D-dimer levels during an asthmatic acute onset and its clinical significance in children.

目的探讨儿童哮喘急性发作期血浆D-二聚体变化及临床意义。

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To study the clinical significance of plasma levels of protein C and D-dimer in patients with deep vein thrombosis (DVT).

目的探讨深部静脉血栓（DVT）患者血浆蛋白C活性和D-二聚体水平及意义。

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Objective To study the correlation between levels of plasma D-dimer (DD) and the severity as well as prognosis of head injury.

目的探讨d -二聚体(DD)含量与颅脑损伤病人伤情、预后的相关性。

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