?:authorAffiliation
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[\'Maternal and Fetal Medicine Division, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh School of Medicine, 300 Halket Street, Pittsburgh, PA 15213, USA.\', \'Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh School of Medicine, University of Pittsburgh Medical Center Magee-Womens Hospital, 300 Halket Street, Pittsburgh, PA 15213, USA. Electronic address: beigrh@upmc.edu.\']
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