Early postnatal application of glucocorticoids for preventing bronchopulmonary dysplasia in preterm infants: a Meta analysis
JI Feng-Juan, YIN Yong, XU Juan, ZHAO Li-Xia, ZHOU Ya-Juan, ZHU Lei
CJCP . 2017, (6): 638 -645 .  DOI: 10.7499/j.issn.1008-8830.2017.06.006