1. First Department of Medicine, Paracelsus Medical University, Salzburg, Austria
2. Department of Internal Medicine, Oberndorf Hospital, Teaching Hospital of the Paracelsus Medical University, Salzburg, Austria
3. Department of Cardiology, University Heart Center Zurich, University Hospital Zurich, University of Zurich, Zurich, Switzerland
4. Laboratory for Immunology, Allergology & Molecular Diagnostics, Department of Dermatology, Paracelsus Medical University, Salzburg, Austria