目的：通过对鼻骨侧位进行高低条件对照摄影，提高了鼻骨外伤的影像质量。
Objective to use high and low condition to get contrast radiography of nasal bone photograph to raise the image quality.
目的：观察单侧腰丛-坐骨神经阻滞用于下肢外伤性手术麻醉的镇痛效果及对血液动力学的影响。
Objective: To evaluate the effect of analgesia and hemodynamic responses on combined lumbar plexus-sciatic nerve block for emergent lower-extremity surgery.
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