1. Department of Cardiology, Radboud University Medical Center, Postbus 9101, 6500 HB Nijmegen, The Netherlands
2. Department of Radiology and Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands
3. Huntington Medical Research Institutes, Pasadena, CA, USA
4. Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
5. West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, UK
6. British Heart Foundation, Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
7. Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
8. Department of Cardiology, Hospital Clínico San Carlos IDISSC, Universidad Complutense de Madrid, Madrid, Spain