1. Department of Congenital Heart Disease and Pediatric Cardiology, University Heart Centre Freiburg—Bad Krozingen, Medical Center—University of Freiburg, Faculty of Medicine University of Freiburg Freiburg Germany
2. Department of Pediatric Cardiology Kinderherzzentrum am Universitätsklinikum Bonn Germany
3. Department of Pediatric Cardiology, Heart Centre Leipzig Helios Klinik GmbH Leipzig Germany
4. Department of Congenital Heart Disease/Pediatric Cardiology, Heart and Diabetes Center NRW Ruhr‐University Bochum Bad Oeynhausen Germany
5. Department of Pediatric Cardiology and Intensive Care Medicine Ludwig‐Maximilians‐University Munich Munich Germany
6. Department of Congenital Heart Disease and Pediatric Cardiology German Heart Centre Berlin Berlin Germany
7. Department of Pediatric Cardiology University Hospital RWTH Aachen Aachen Germany
8. German Center for Cardiovascular Research Berlin Germany
9. Department of Pediatric Cardiology and Congenital Heart Defects German Heart Centre of the State of Bavaria and the Technical University Munich Germany
10. German Center for Cardiovascular Research Munich Germany
11. Clinical Trials Unit, Medical Centre—University of Freiburg, Faculty of Medicine University of Freiburg Freiburg Germany