1. Division of Clinical and Experimental Electrophysiology, Department of Cardiology and Angiology; University Hospital of Münster; Münster Germany
2. Clinic of Exotic Pets, Reptiles, Exotic and Feral Birds; University of Hanover; Hanover Germany
3. Märkische Kliniken GmbH, Department of Cardiology and Angiology, Klinikum Lüdenscheid; University of Witten-Herdecke; Witten Germany