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Journal
PLoS One
Volume
7
Issue
12
Pages
e52780
Publication year
2012
Suggested citation
Zhang YP, Liu XH, Gao SH, Wang JM, Gu YS, Zhang JY, Zhou X, Li QX. Risk factors for preterm birth in five Maternal and Child Health hospitals in Beijing. PLoS One. 2012; 7(12): e52780.
DOI
10.1371/journal.pone.0052780
PMID
23300774