1. Medical Clinic III, University Clinic Schleswig-Holstein Campus Luebeck, Ratzeburger Alle 160, 23562 Luebeck, Germany
2. Airway Research Center North (ARCN), German Center for Lung Research (DZL), 22927 Großhansdorf, Germany
3. Cardiology Kiel, 24116 Kiel, Germany
4. Clinic for Rhythmology, Campus Lübeck, University Hospital Schleswig-Holstein, 23562 Lübeck, Germany
5. Section for Pulmonary Pediatrics, Campus Lübeck, University Hospital Schleswig-Holstein, 23562 Lübeck, Germany
6. DRK Krankenhaus Mölln-Ratzeburg, Anästhesie, Röpersberg 2, 23909 Ratzeburg, Germany
7. Cardiology Landsberg, 86899 Landsberg, Germany