双水平气道正压通气联合舒利迭在老年中重度慢性阻塞性肺疾病合并Ⅱ型呼吸衰竭患者中的应用效果观察
쌍수평기도정압통기연합서리질재노년중중도만성조새성폐질병합병Ⅱ형호흡쇠갈환자중적응용효과관찰
Application effects of bi-level airway pressure ventilation combined with seretide on elderly patients with moderate to severe chronic obstructive pulmonary diseases with type Ⅱ respiratory failure