1. Department of Cardiothoracic Surgery, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
2. Department of Pediatric Cardiology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
3. Department of Radiology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
4. Department of Epidemiology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
5. Department of Cardiothoracic Surgery, University Medical Center Amsterdam, University of Amsterdam, Amsterdam, Netherlands