BiPAP无创呼吸机治疗COPD合并II型呼吸衰竭24例疗效观察
BiPAP무창호흡궤치료COPD합병II형호흡쇠갈24례료효관찰
The therapeutic effect of BiPAP non-invasive ventilator on COPD with type II respiratory failure:24 cases report