Meta-analysis of the efficacy and safety of helmet and face mask noninvasive ventilation in patients with chronic obstructive pulmonary disease
ZHANG Qiongzhen, JIANG Haiming, QIU Jianqing, SUN Bin
滨州医学院学报 . 2021, (1): 43 -48 .  DOI: 10.19739/j.cnki.issn1001-9510.2021.01.009