1. Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine; Stanford University School of Medicine; Stanford CA USA
2. Department of Pediatrics, Division of Neonatal and Developmental Medicine; Stanford University School of Medicine; Stanford CA USA
3. Fetal and Pregnancy Health Program; Lucile Packard Children's Hospital; Palo Alto CA USA
4. Fetal Medicine Research Institute; King's College University Hospital; London UK
5. University of California; Davis CA USA
6. Department of Radiology; Stanford University School of Medicine; Stanford CA USA
7. Department of Surgery; Stanford University School of Medicine; Stanford CA USA