1. Comprehensive Heart Failure Center University and University Hospital Würzburg Am Schwarzenberg 15 Würzburg D‐97078 Germany
2. Department of Medicine I University Hospital Würzburg Würzburg Germany
3. Institute for Virology and Immunobiology University of Würzburg Würzburg Germany
4. Interdisciplinary Bank of Biomaterials and Data Würzburg (ibdw) University Hospital Würzburg Würzburg Germany