1. Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands
2. Department of Cardiology, Kaunas University of Medicine, Kaunas, Lithuania
3. The Interuniversity Cardiology Institute of the Netherlands, Utrecht, the Netherlands
4. Department of Epidemiology and Statistics, Erasmus University, Rotterdam, the Netherlands
5. Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands