1. Department of Radiation Oncology, University Medical Center Schleswig-Holstein , Arnold-Heller-Strasse 3, Kiel 24105 , Germany
2. Department of Radiotherapy, University Medical Center Utrecht , Heidelberglaan 100, Utrecht 3584 CX , The Netherlands
3. IIIrd Radiotherapy and Chemotherapy Department, Maria Skłodowska-Curie National Research Institute of Oncology , Ul. Wybrzeze Armii Krajowej, Gliwice 44102 , Poland
4. Department of Radiotherapy, Maria Skłodowska-Curie National Research Institute of Oncology , Ul. Wybrzeze Armii Krajowej, Gliwice 44102 , Poland
5. Department of Oncology and Radiotherapy, Faculty of Medicine, Medical University of Gdansk , M. Sklodowskiel-Curie 3a, Gdansk 80210 , Poland
6. Research Support Office, University Medical Center Utrecht , Heidelberglaan 100, Utrecht 3584 CX , The Netherlands
7. Department of Radiation Oncology, Hospital Clínico San Carlos, Faculty of Medicine, University Complutense of Madrid , Profesor Martin Lagos, Madrid 28040 , Spain
8. Department of Advanced Radiation Oncology, IRCCS Sacro Cuore Don Calabria Hospital, University of Brescia , Via San Zeno in Monte 23, Verona 37129 , Italy
9. Division of Cardiology, Cardiovascular and Thoracic Department, ‘Città della Salute e della Scienza’ Hospital , Via Giuseppe Verdi 8, Torino 10124 , Italy
10. Department of Medical Sciences, University of Turin , Via Verdi 8, Torino 10124 , Italy
11. Electrophysiology Unit, Department of Cardiology, Hospital Clínico San Carlos Madrid , Professor Martin Lagos, Madrid 28040 , Spain
12. Department of Radiation Oncology, Amsterdam UMC, University of Amsterdam , Meibergdreef 15, Amsterdam 1105AZ , The Netherlands
13. Department of Radiation Oncology, University Medical Center Mannheim, Medical Faculty Mannheim, University of Heidelberg , Theodor-Kutzer-Ufer 1-3, Mannheim 68167 , Germany
14. Department of Rhythmology, Charité—University Medicine Berlin , Charitéplatz 1, 10117 Berlin , Germany
15. Cardiology Arrhythmology Center, AUSL-IRCCS di Reggio Emilia , Via Amendola 2, Reggio Emilia 42100 , Italy
16. Department of Oncology, University Hospital and Faculty of Medicine , Listopadu 1790, Ostrava Poruba 70852 , Czech Republic
17. Department of Radiation Oncology, Inselspital, Bern University Hospital, University of Bern , Freiburgstrasse 18, Bern 3010 , Switzerland
18. Department of Cardiology, Division of Heart and Lungs, University Medical Center Utrecht, Utrecht University , Heidelberglaan 100, Utrecht 3584 CX , The Netherlands
19. Department of Radiation Oncology (Maastro), GROW School for Oncology and Reproduction, Maastricht University Medical Centre+ , P. Debyelaan 25, Maastricht 6229 HX , The Netherlands
20. Department of Electrophysiology, Heart Center Leipzig, University of Leipzig , Struempellstrasse 39, Leipzig 04289 , Germany
21. Department of Radiation Oncology, Catharina Hospital , Michelangelolaan 2, Eindhoven 5623 EJ , The Netherlands
22. Radiation Oncology Unit, Clinical Cancer Centre, AUSL-IRCCS di Reggio Emilia , Via Amendola 2, Reggio Emilia 42100 , Italy
23. Division of Cardiology and Structural Heart Diseases, Medical University of Silesia , Ul. Poniatowskiego 15, Katowice 40055 , Poland
24. Interventional Cardiac Electrophysiology Group, International Clinical Research Center, St. Anne’s University Hospital Brno , Brno , Czech Republic
25. Cardiocenter, Hospital Agel Trinec Podlesi and Masaryk University , Konska 453, Trinec 73961 , Czech Republic
26. Department of Radio-Oncology, Lausanne University Hospital , Rue du Bugnon 21, Lausanne 1011 , Switzerland
27. Department of Cardiology, Aarhus University Hospital , Palle Juul-Jensens Boulevard 99, Aarhus 8200 , Denmark
28. Department of Oncology, University of Torino , Via Giuseppe Verdi 8, Torino 10124 , Italy
29. Department of Radiation Oncology, Hospital del Mar, Universitat Pompeu Fabra, Institut Hospital del Mar d'Investigacions Mèdiques , Paseo Maritim 25-29, Barcelona 08003 , Spain
30. Department of Cardiology, Hospital del Mar, Universitat Pompeu Fabra, Institut Hospital del Mar d'Investigacions Mèdiques , Paseo Maritim 25-29, Barcelona 08003 , Spain
31. Department for Radiation Oncology, Charité—Universitätsmedizin Berlin , Charitéplatz 1, 10117 Berlin , Germany
32. Department of Oncology, Aarhus University Hospital , Palle Juul-Jensens Boulevard 99, Aarhus 8200 , Denmark
33. Department of Cardiology, IRCCS Sacro Cuore Don Calabria Hospital , Via San Zeno in Monte 23, Verona 37129 , Italy
34. Department of Cardiology, Catharina Hospital , Michelangelolaan 2, Eindhoven 5623 EJ , The Netherlands
35. Department of Cardiology, Institute for Clinical and Experimental Medicine , Videnska 9, Prague 14000 , Czech Republic
36. Department of Cardiovascular Medicine, University Hospital Ostrava , Listopadu 1790. Ostrava Poruba 70852 , Czech Republic
37. Department of Cardiology, Amsterdam UMC, University of Amsterdam , Meibergdreef 15, Amsterdam 1105AZ , The Netherlands
38. Arrhythmia Unit, Department of Cardiology, Consorcio Hospital General Universitario de Valencia , Av Tres Cruces 2, Valencia 46014 , Spain
39. Department of Cardiology, Inselspital, Bern University Hospital, University of Bern , Freiburgstrasse 18, Bern 3010 , Switzerland
40. Cardiac Intensive Care Unit, Arrhythmia and Electrophysiology and Experimental Cardiology, Fondazione IRCCS Policlinico San Matteo , Camillo Golgi Avenue 5, Pavia 27100 , Italy
41. Department of Medicine I, University Medical Center Mannheim, Medical Faculty Mannheim, University of Heidelberg , Theodor-Kutzer-Ufer 1-3, Mannheim 68167 , Germany
42. Arrhythmia Unit, Department of Cardiology, University Hospital Zurich , Ramistrasse 71, Zurich 8006 , Switzerland
43. Department of Cardiology, Maastricht University Medical Center , P. Debyelaan 25, Maastricht 6229 HX , The Netherlands
44. Department of Radiation Oncology, Hospital General Valencia , Av Tres Cruces 2, Valencia 46014 , Spain
45. Department of Radiotherapy and Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden , Fetscherstraße 74, Dresden 01307 , Germany
46. OncoRay—National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus. Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf , Fetscherstrasse 74, Dresden 01307 , Germany
47. Institute of Radiooncology - OncoRay, Helmholtz-Zentrum Dresden-Rossendorf , Bautzner Landstr. 400, Dresden 01328 , Germany
48. National Center of Oncological Hadrontherapy (Fondazione CNAO) , Strada Campeggi 53, Pavia PV27100 , Italy
49. Department of Radiation Oncology, University Hospital of Zurich , Ramistrasse 71, Zurich 8006 , Switzerland
50. Unit of Clinical Electrophysiology, Leiden University Medical Center , Albinusdreef 2, Leiden 2333 ZA , The Netherlands
51. Bioethics Unit, Azienda Unità Sanitaria Locale—IRCCS , Via Amendola 2, Reggio Emilia 42100 , Italy
52. Heart and Vessel Department, Service of Cardiology, Lausanne University Hospital and University of Lausanne , Rue du Bugnon 21, Lausanne 1011 , Switzerland