高雾量雾化吸入对老年慢性阻塞性肺疾病伴呼吸衰竭患者排痰效果的临床观察
고무량무화흡입대노년만성조새성폐질병반호흡쇠갈환자배담효과적림상관찰
Clinical observation about expectoration among elder patients with chronic obstructive pulmonary disease and respiratory failure by high volume fog inhalation
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