1. Eurocat Northern Netherlands, Department of Genetics; University Medical Center Groningen, University of Groningen; Groningen The Netherlands
2. Department of Obstetrics and Gynaecology/Prenatal Diagnosis; University Medical Center Groningen, University of Groningen; Groningen The Netherlands
3. Department of Paediatric Nephrology; University Medical Center Groningen, University of Groningen; Groningen The Netherlands