Evaluation of bilevel positive airway pressure ventilation therapy on right ventricular function in COPD patients combined with respiratory failure by Tei index
CHEN Xiaoxue1, SONG Degang2, SUN Lijuan1
Journal of Hebei Medical University . 2017, (4): 450 -453,457 .  DOI: 10.3969/j.issn.10073205.2017.04.019