1. Institut für Medizinische Biometrie und Statistik, Universität zu Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
2. Institute of Life Science, Hochschule Bremerhaven, An der Karlstadt 8, 27568 Bremerhaven, Germany
3. Medical Faculty, Christian-Albrechts University, Christian-Albrechts-Platz 4, 24118 Kiel, Germany
4. Department of Cardiology, Klinikum Freising, Alois-Steinecker-Straße 18, 85354 Freising, Germany
5. Department of Cardiology, Royal Victoria Hospital, Grosvenor Road, Belfast BT12 6BA, UK
6. Department of Cardiology, Ospedale Santa Maria Annunziata, Ponte a Niccheri, 50012 Florence, Italy
7. Department of Cardiology, Ospedale Regionale San Maurizio, Bolzano, Via Lorenz Böhler 5, 39100 Bolzano, Italy
8. Regional Hospital Wiener Neustadt, Wiener Neustadt 2700, Austria
9. Institute for Skin Integrity and Infection Prevention, School of Human and Health Sciences, University of Huddersfield, Huddersfield HD1 3DH, UK
10. Department of Cardiology, Hôpital Louis Pradel, 59 Bd Pinel, 69500 Bron, France
11. Department of Electropyhsiology, Herzzentrum Leipzig, Strümpellstraße 39, 04289 Leipzig, Germany
12. Department of Cardiology, Helios Klinikum Cuxhaven, Altenwalder Ch 10, 27474 Cuxhaven, Germany
13. Department of Cardiology, Helios Klinikum Wesermarsch, Mildred-Scheel-Straße 1, 26954 Nordenham, Germany