1 Clinic of Internal Medicine II, Department of Cardiology, Paracelsus Medical University of Salzburg, Salzburg, Austria. Electronic address: [email protected].
2 Department of Internal Medicine, Teaching Hospital of the Paracelsus Medical University Salzburg, General Hospital Oberndorf, Paracelsus Medical University Salzburg, Oberndorf, Austria.
3 Department of Cardiology, University Hospital Zurich, Zurich, Switzerland.