1. Division of Cardiology, Department of Medicine; Johns Hopkins University School of Medicine; Baltimore MD USA
2. Department of Genetics, University Medical Center Groningen; University of Groningen; Groningen the Netherlands
3. Netherlands Heart Institute; Utrecht the Netherlands
4. Division of Cardiology; University Medical Center Utrecht; Utrecht the Netherlands
5. Department of Cardiology, University of Groningen; University Medical Center Groningen; Groningen the Netherlands
6. Department of Cardiology, Academic Medical Centre, Heart Center; University of Amsterdam; Amsterdam The Netherlands
7. Department of Clinical Genetics, Amsterdam Cardiovascular Sciences; Academic Medical Center, University of Amsterdam; Amsterdam the Netherlands
8. Department of Medical Genetics; University Medical Center Utrecht; Utrecht the Netherlands