1. Department of Otorhinolaryngology, Head and Neck Surgery, Medical Faculty Mannheim University of Heidelberg Mannheim Germany
2. Division for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopaedics University of Ulm Ulm Germany
3. Institute of Bioprocess Engineering Friedrich‐Alexander‐University of Erlangen‐Nürnberg Erlangen Germany
4. Institute of Transfusion Medicine and Immunology Medical Faculty Mannheim of Ruprecht‐Karls‐University Heidelberg Mannheim Germany