超声导引结合改良塞丁格技术行上臂PICC置入与盲穿置管的比较
초성도인결합개량새정격기술행상비PICC치입여맹천치관적비교
Comparison of efficacies of upper arm placement of peripherally inserted central venous catheters:using ultrasound guidance and modified Seldinger technique versus traditional method
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