Arrhythmias, Cardiac

• Cardiology, P.C. — Birmingham, Alabama, United States
• Oracle Research, a Division of: The Heart Center, P.C. — Huntsville, Alabama, United States
• Arizona Heart Institute Mesa — Mesa, Arizona, United States
• Saguaro Clinical Research — Tucson, Arizona, United States

• Heart Center Dresden — Dresden, Germany
• Herzzentrum Leipzig GmbH — Leipzig, Germany
• Deutsches Herzzentrum München — Munich, Germany

Not specified

• London Health Sciences Centre, University Hospital — London, Ontario, Canada

• Pra International — Lenexa, Kansas, United States

• Pra International — Lenexa, Kansas, United States

• Auchenflower, Australia
• Caboolture, Australia
• Kippa-Ring, Australia
• Victoria, Australia

• Institute of clinical and experimental medicine — Prague, Czechia
• Hospital Na Homolce — Prague, Czechia
• Zentralklinik Bad Berka — Bad Berka, Germany
• Herz- und Gefäßklinikum Bad Neustadt GmbH — Bad Neustadt an der Saale, Germany

• Servicio de Cardiología, Hospital Clínic — Barcelona, Spain
• Hospital Donostia — Donostia / San Sebastian, Guipuzcoa, Spain
• Hospital Puerta de Hierro — Madrid, Spain
• Hospital La Fe — Valencia, Spain

• Research Site — Gothenburg, Sweden