沙美特罗替卡松粉吸入剂与沙美特罗干粉吸入剂治疗COPD稳定期的疗效观察
사미특라체잡송분흡입제여사미특라간분흡입제치료COPD은정기적료효관찰
The curative effect of salmeterol xinafoate for inhalation and salmeterol of foradil aerolizer formoterol fumarate used on the COPD stable phase
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