Affiliation: | 1 Division of Maternal-Fetal Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 2 Department of Obstetrics and Gynecology, Cedars-Sinai Medical Center, Los Angeles, CA 3 David Geffen School of Medicine, University of California, Los Angeles, CA 4 Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI. |