无创正压通气治疗慢性阻塞性肺疾病急性加重期37例疗效观察
무창정압통기치료만성조새성폐질병급성가중기37례료효관찰
Clinical effect of noninvasive positive pressure ventilation in the treatment of chronic obstructive pulmonary disease with acute exacerbation in 37 cases