1. Department of Cardiology, Second Medical School, Charles University, University Hospital Motol, V Úvalu 84, Prague, Czech Republic
2. Department of Cardiology, Heart and Diabetes Centre NRW, Ruhr -University Bochum, Georgstraße 11, Bad Oeynhausen, Germany
3. Department of Cardiology, St. Antonius Hospital, Koekoekslaan 1, CM Nieuwegein, the Netherlands
4. Institute of Cardiovascular Medicine and Science, Liverpool Heart and Chest Hospital, Thomas Dr, Liverpool, England
5. Cardiocentre Podlesí, Konská 453, Třinec, Czech Republic
6. Sverdlovsk Regional Hospital N1, 185 Volgogradskaya St., Yekaterinburg, Sverdlovsk, Russian Federation
7. Department of Interventional Cardiology and Angiology, Institute of Cardiology, Alpejska 42, Warsaw, Poland
8. Department of Cardiology, Gentofte Hospital Copenhagen University Hospital, Kildegårdsvej 28, Hellerup, Denmark
9. Department of Internal Medicine, Juliusspital Wuerzburg, Juliuspromenade 19, Würzburg, Wuerzburg, Germany
10. Unit for Inherited Cardiac Diseases, Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, Copenhagen, Denmark