Vest(TM)气道清除系统与旋转振动排痰仪用于老年患者全麻术后排痰效果的比较
Vest(TM)기도청제계통여선전진동배담의용우노년환자전마술후배담효과적비교
Comparison of expectoration effect between applying the vest airway clearance system and vibration sputum elimination apparatus for elderly postoperative patients