1. Fetal & Neonatal Cardiology Program Division of Cardiology, Department of Pediatrics, Stollery Children's Hospital Edmonton Alberta Canada
2. Department of Pediatrics, Section of Cardiology, Alberta Children's Hospital University of Calgary Calgary Alberta Canada
3. Department of Obstetrics & Gynecology Lois Hole Women's Hospital, Royal Alexandra Hospital Edmonton Alberta Canada
4. Women's & Children's Health Research Institute University of Alberta Edmonton Alberta Canada