DONG Ren-jing, JIN Zhen-ai, LIU Meng-nan, ZHANG Xiao-jia, JIN Ying-zi. Relationship between the levels of IL-6,TNF-α in umbilical cord blood and chorioamnionitis in neonates with preterm prematurely rupture of membranes[J]. journal1, 2018, 26(2): 206-207.