Department of Cardiology, Klinikum Bogenhausen, Munich, Germany;
Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany;
Ruhr University Bochum, Bad Oeynhausen, Germany;
Department of Cardiology, Kerckhoff Klinik, Bad Nauheim, Germany;
Stiftung Institut für Herzinfarktforschung, Ludwigshafen am Rhein, Germany;
Klinikum Hildesheim, Hildesheim, Germany;
Center for Cardiology and Angiology Frankfurt, CCB, Frankfurt am Main, Germany;
Department of Cardiology, Vivantes Klinikum am Urban, Berlin, Germany;
Praxisklinik Herz und Gefäße, Dresden, Germany;
Department of Cardiology, Isar Herzzentrum, Munich, Germany;
Department of Cardiology, Universitäres Herzzentrum Hamburg, Hamburg, Germany;
Department of Cardiology, Klinikum Coburg, Coburg, Coburg;
Department of Cardiology, Klinikum Bielefeld, Bielefeld, Germany;
Atrial; Fibrillation; Catheter; Ablation; Cryoballoon; Ablation; Radiofrequency; Ablation; Registry;