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中文
A multicenter study of the birth condition of preterm infants and the causes of preterm birth in Henan Province, China
LIU Ya-Xuan, XU Fa-Lin, DUAN Wen-Li, DONG Hui-Fang, WANG Yin-Juan, ZHANG Yi, ZHANG Ru
CJCP . 2021, (
2
): 121 -126 . DOI: 10.7499/j.issn.1008-8830.2010063