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Van de Waarsenburg MK, Verberne EA, van der Vaart CH, Withagen MIJ.Van de Waarsenburg MK, et al.Ultrasound Obstet Gynecol. 2018 Sep;52(3):390-395. doi: 10.1002/uog.18976.Ultrasound Obstet Gynecol. 2018.PMID: 29205594Free article.