Affiliation: | 1. Human Genetics, The University of Chicago, Chicago, IL, USA;2. Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA;3. Mount Sinai Hospital, Toronto, ON, Canada;4. Beth Israel Deaconess Medical Center, Boston, MA, USA;5. Division of Perinatal Medicine, Swedish Medical Center, Seattle, WA, USA;6. Obstetrix Medical Group, Swedish Medical Center, Seattle, WA, USA;7. Department of Laboratories, Seattle Children's Hospital, Seattle, WA, USA Departments of Pathology and Pediatrics, University of Washington, Seattle, WA, USA;8. Department of Pediatrics, Division of Medical Genetics, Centre Hospitalier Universitaire de Sherbrooke and Université de Sherbrooke, Sherbrooke, Canada Genetics Counseling Service, Chicoutimi Hospital, Saguenay, Canada;9. Genetics Counseling Service, Chicoutimi Hospital, Saguenay, Canada;10. Department of Pathology, Centre Hospitalier Universitaire de Québec, Quebec City, Canada |