Affiliation: | 1. Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario, Canada;2. Fetal Medicine Division (Placenta Clinic), Department of Obstetrics and Gynecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada.;3. Department of Medical Imaging, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada. |