Affiliation: | 1. Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynaecology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Canada;2. The Prenatal Diagnosis and Medical Genetics Program, Department of Obstetrics and Gynaecology, Mount Sinai Hospital, University of Toronto, Toronto, Canada Division of Clinical and Metabolic Genetics, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Canada;3. Department of Medical Genetics, North York General Hospital, University of Toronto, Toronto, Canada;4. Division of Molecular Pediatrics, Maternité, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland;5. Department of Pathology, Mount Sinai Hospital, University of Toronto, Toronto, Canada;6. The Prenatal Diagnosis and Medical Genetics Program, Department of Obstetrics and Gynaecology, Mount Sinai Hospital, University of Toronto, Toronto, Canada;7. Department of Pathology, North York General Hospital, University of Toronto, Toronto, Canada;8. Division of Diagnostic Imaging, Mount Sinai Hospital, University of Toronto, Toronto, Canada |