B超导引下改良塞丁格技术两种扩皮方式行中心静脉置管出血量的比较
B초도인하개량새정격기술량충확피방식행중심정맥치관출혈량적비교
Effects of two kinds of expanded skin on the bleeding during MST-PICC puncture guided by B-ultrasound
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