超声定位加改良塞丁格技术对静脉穿刺困难患者置入PICC的应用探讨
초성정위가개량새정격기술대정맥천자곤난환자치입PICC적응용탐토
The practical investigation of treating patients with venipuncture dififculty by PICC integrating ultrasonic localization and modiifed Seldinger Technique
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