?:authorAffiliation
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[\'Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Stanford University School of Medicine, 300 Pasteur Dr. HH333, Stanford, CA 94305. Electronic address: Hayleym@stanford.edu.\', \'Division of Family Planning Services and Research, Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA.\', \'Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA.\', \'Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA.\', \'Department of Obstetrics and Gynecology Stanford University School of Medicine San Mateo County Medical Center Stanford, CA.\', \'XXX.\']
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