1. Clinic for Gastroenterology, Hepatology and Infectious Diseases Heinrich‐Heine‐University Düsseldorf Düsseldorf Germany
2. Department of Anaesthesiology Medical Faculty Heinrich‐Heine Universität Düsseldorf Germany
3. Department of Diagnostic and Interventional Radiology Heinrich‐Heine‐University Düsseldorf Düsseldorf Germany
4. Institute of Virology Heinrich Heine UniversityUniversity Hospital Düsseldorf Germany
5. Institute of Pathology Heinrich‐Heine University and University Hospital Düsseldorf Germany