1 Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, USA Center for Fetal Medicine, Magee-Women's Research Institute, Pittsburgh, PA, USA.
2 Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, USA.
3 Center for Fetal Medicine, Magee-Women's Research Institute, Pittsburgh, PA, USA.
4 Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, USA Center for Fetal Medicine, Magee-Women's Research Institute, Pittsburgh, PA, USA [email protected].