Risk factors for treatment failure of heated humidified high-flow nasal cannula as initial respiratory support for preterm infants
DU Zuo-Ping, XIAO Chuan-Xu, ZENG Yi-Xie, CHEN Kai
CJCP . 2021, (9): 896 -902 .  DOI: 10.7499/j.issn.1008-8830.2107017