经皮肝穿刺酒精消融术中的X线导向与X线联合B超导向的对比研究
경피간천자주정소융술중적X선도향여X선연합B초도향적대비연구
A contrastive study of the X-ray guidance and the X-ray combined with B ultrasound guidance in percutaneous ethanol ablation for malignant liver tumors
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