无创气道咳痰机与旋转振动排痰仪用于高龄COPD患者排痰效果比较

Journal of Nursing ›› 2012 ›› Issue (19) : 47-48.

PDF(790 KB)
PDF(790 KB)
Journal of Nursing ›› 2012 ›› Issue (19) : 47-48.

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