Affiliation: | 1. Fetal and Neonatal Cardiology Program, Division of Cardiology, Department of Pediatrics, University of Alberta, Edmonton, AB, Canada;2. Department of Obstetrics and Gynecology, University of Alberta, Edmonton, AB, Canada;3. Department of Women''s and Children''s Health, Karolinska Institutet, Stockholm, Sweden;4. Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado, Aurora, CO |