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5. Challenges in defining and classifying the preterm birth syndrome. Kramer MS; Papageorghiou A; Culhane J; Bhutta Z; Goldenberg RL; Gravett M; Iams JD; Conde-Agudelo A; Waller S; Barros F; Knight H; Villar J Am J Obstet Gynecol; 2012 Feb; 206(2):108-12. PubMed ID: 22118964 [TBL] [Abstract][Full Text] [Related]
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