?:authorAffiliation
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[\'Division of Maternal Fetal Medicine, Columbia University Irving Medical Center, 622 West 168th Street, PH-1666, New York, NY 10032, United States.\', \'Division of Maternal Fetal Medicine, Columbia University Irving Medical Center, 622 West 168th Street, PH-1666, New York, NY 10032, United States. Electronic address: ls731@cumc.columbia.edu.\']
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