Effect of HFOV plus CMV combined with Sildenafil and calf pulmonary surfactant for injection on severe PPHN#br#
YANG Hai-juan1, XU Ze-hui1, ZHANG Meng-hua2
Journal of Hebei Medical University . 2020, (3): 315 -318 .  DOI: 10.3969/j.issn.1007-3205.2020.03.016