Objective to explore the application value of IPDT (improved percutaneous dilational tracheostomy) in neurosurgery.
目的探讨改良经皮扩张气管切开术(IPDT)在神经外科应用价值。
The influences on dilational properties of surfactant film depend on structure of polymer, ionic strength and ionic type.
不同结构聚合物以及不同离子强度、不同类型电解质对表面活性剂吸附膜有不同的影响。
Objective To investigate the spin expansion of percutaneous dilational tracheostomy in critically ill patients application.
目的探讨改良经皮旋转扩张气管切开术在危重病中的应用价值。
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