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Bushman ET, Theilen LH, Monson M, Hammad I, Esplin I, Esplin MS.Bushman ET, et al.J Matern Fetal Neonatal Med. 2020 Sep;33(17):2909-2912. doi: 10.1080/14767058.2018.1564027. Epub 2019 Jan 7.J Matern Fetal Neonatal Med. 2020.PMID: 30614330