Prophylactic probiotics for preventing necrotizing enterocolitis and reducing mortality in very low birth weight infants: a Meta analysis
WANG Xiao-Ling, LI Xiong, KANG Lan, WANG Sheng-Hui, DONG Wen-Bin
CJCP . 2015, (8): 852 -858 .  DOI: 10.7499/j.issn.1008-8830.2015.08.018