1. The Prenatal Diagnosis and Medical Genetics Program, Department of Obstetrics and Gynecology; Mount Sinai Hospital; Toronto ON Canada
2. Division of Clinical and Metabolic Genetics, Department of Paediatrics, The Hospital for Sick Children; University of Toronto; Toronto ON Canada
3. Department of Human Genetics; Radboud University Medical Center; Nijmegen The Netherlands
4. The Centre for Applied Genomics and Program in Genetics and Genome Biology; The Hospital for Sick Children; Toronto ON Canada
5. Lillehei Heart Institute, University of Minnesota; Minneapolis MN USA
6. Medical Genetics Department; İstanbul Medical Faculty, Istanbul University; Istanbul Turkey
7. Department of Obstetrics and Gynecology; Mount Sinai Hospital, University of Toronto; Toronto ON Canada