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Shennan A, Story L, Jacobsson B, Grobman WA; FIGO Working Group for Preterm Birth.Shennan A, et al.Int J Gynaecol Obstet. 2021 Oct;155(1):19-22. doi: 10.1002/ijgo.13835.Int J Gynaecol Obstet. 2021.PMID: 34520055Free PMC article.
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Bianchi A, Jacobsson B, Mol BW; FIGO Working Group for Preterm Birth.Bianchi A, et al.Int J Gynaecol Obstet. 2021 Oct;155(1):34-36. doi: 10.1002/ijgo.13841.Int J Gynaecol Obstet. 2021.PMID: 34520061Free PMC article.