1. Department of Ophthalmology, Faculty of Medicine and University Hospital of Cologne University of Cologne Cologne Germany
2. Laboratory of Experimental Immunology, Institute of Virology, Faculty of Medicine and University Hospital of Cologne University of Cologne Cologne Germany
3. Department of Internal Medicine I, Faculty of Medicine and University Hospital of Cologne University of Cologne Cologne Germany
4. Center for Integrated Oncology (CIO) Aachen‐Bonn‐Cologne‐Duesseldorf Cologne Germany