?:authorAffiliation
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[\'Department of Obstetrics and Gynecology, Vagelos College of Physicians and Surgeons, Columbia University, 622 West 168th Street, New York, NY, United States.\', \'Department of Anesthesiology, Vagelos College of Physicians and Surgeons, Columbia University, New York From Columbia University Irving Medical Center, United States.\', \'Department of Obstetrics and Gynecology, Vagelos College of Physicians and Surgeons, Columbia University, 622 West 168th Street, New York, NY, United States. Electronic address: lm3000@cumc.columbia.edu.\']
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