1. First Department of Cardiology University of Ioannina Medical School Ioannina Greece
2. Tianjin Key Laboratory of Ionic‐Molecular Function of Cardiovascular Disease Department of Cardiology Tianjin Institute of Cardiology Second Hospital of Tianjin Medical University Tianjin China
3. Second Department of Cardiology “Evangelismos” General Hospital of Athens Athens Greece
4. Second Department of Internal Medicine University of Ioannina Medical School Ioannina Greece
5. First Department of Internal Medicine University of Ioannina Medical School Ioannina Greece