低出生体重儿的相关危险因素研究进展(4)
[14]Andersen AN，Goossens V，Ferraretti AP，et a1.Assisted reproductive technology in Europe，2004.Resuks generated from European registers by ESHRE[J]. Hum Reprod，2008(23)：756-771.[15]Harper LM，Odibo AO，Roehl KA，et al.Risk of preterm delivery and growth restriction in twins discordant for structural anomalies[J]. Am J Obstet Gynecol ......
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