支气管肺泡灌洗联合BiPAP治疗AECOPD伴呼吸衰竭的疗效分析
지기관폐포관세연합BiPAP치료AECOPD반호흡쇠갈적료효분석
Curative effect analysis of bronchoalveolar lavage combined with BiPAP in the treatment of AECOPD patients complicated with respiratory failure