无创呼吸机治疗老年慢性阻塞性肺疾病并发Ⅱ型呼吸衰竭31例
무창호흡궤치료노년만성조새성폐질병병발Ⅱ형호흡쇠갈31례
Clinical observations of noninvasive positive pressure ventilation for acute exacerbations of elder chronic obstructive pulmonary disease complicated with type Ⅱ respiratory failure
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