Objective To reduce the patients incidence of deep venous thrombosis after extremitas inferior trauma and operation.目的降低骨科下肢创伤及手术后患者深静脉血栓形成的发生率....

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extremitas的音标：extremitas的英式发音音标为：[ɪkstre'mi:təz]extremitas的美式发音音标为：[ɪkstre'mitəz]...