Objective To evaluate the effect of the delivery of oxygen via improved facial mask during fiberoptic bronchoscopy (FOB) in old patients.
目的本研究拟评价在老年患者中采用自行设计的改良面罩在纤支镜吸痰中的效果。
Objective To evaluate the effect of the delivery of oxygen via improved facial mask during fiberoptic bronchoscopy (FOB) in old patients.
目的本研究拟评价在老年患者中采用自行设计的改良面罩在纤支镜吸痰中的效果。
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