1. Department of Cardiology; Na Homolce Hospital; Prague Czech Republic
2. Cardiac Rhythm and Heart Failure; Medtronic Plc; Minneapolis Minnesota
3. Department of Medicine, Solna, Karolinska Institutet, and Department of Cardiology; Karolinska University Hospital; Stockholm Sweden
4. Department of Clinical Neuroscience, Karolinska Institutet; and Department of Neurosurgery; Karolinska University Hospital; Stockholm Sweden
5. Department of Molecular Medicine and Surgery, Karolinska Institutet, and Department of Clinical Physiology; Karolinska University Hospital; Stockholm Sweden
6. Department of Cardiology; Leiden University Medical Center; Leiden the Netherlands
7. Department of Clinical Physiology; Sunderby Hospital; Luleå Sweden
8. Department of Nuclear Medicine; University Hospital Královské Vinohrady; Prague Czech Republic