1. Department of Pediatrics; University Medical Center Groningen; University of Groningen; Groningen the Netherlands
2. Department of Genetics; University Medical Center Groningen; University of Groningen; Groningen the Netherlands
3. Department of Laboratory Medicine; University of Groningen, University Medical Center Groningen; Groningen the Netherlands
4. Department of Anatomy and Embryology; Leiden University Medical Center; Leiden the Netherlands
5. Center for Congenital Heart Diseases; Beatrix Children's Hospital; University Medical Center Groningen; University of Groningen; Groningen the Netherlands
6. Department of Obstetrics and Gynaecology; University Medical Center Groningen; University of Groningen; Groningen the Netherlands