Perinatal high-risk factors for necrotizing enterocolitis in preterm infants：a case-control study
WANG Rui-Juan, KONG Xiang-Yong, CAI Na, CHEN Ying, FENG Zhi-Chun
CJCP . 2014, (4): 414 -417 .  DOI: 10.7499/j.issn.1008-8830.2014.04.022