【题名】:Preterm birth: new data on a global health priority
【作者】:Nils-Halvdan Morken
【杂志名全称】:The Lancet,
【年,卷(期),起止页码】:Volume 379, Issue 9832, Pages 2128 - 2130, 9 June 2012
【全文链接】:http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(12)60857-5/fulltext
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