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Hodyl NA, Aboustate N, Bianco-Miotto T, Roberts CT, Clifton VL, Stark MJ.Hodyl NA, et al.Placenta. 2017 Sep;57:79-86. doi: 10.1016/j.placenta.2017.06.009. Epub 2017 Jun 15.Placenta. 2017.PMID: 28864022Review.