?:authorAffiliation
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[\'Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of California, Los Angeles, California.\', \'Division of Infectious Disease, Department of Pediatrics, University of California, Los Angeles, California.\', \'Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Keck School of Medicine-University of Southern California, Los Angeles, California.\', \'Department of Pathology, University of California, Los Angeles, California.\']
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