1. Institute of Immunology, Department of Veterinary Medicine; Freie Universität Berlin; Germany
2. Department of Rheumatology and Clinical Immunology; Charité University Hospital; Berlin Germany
3. German Rheumatism Research Center; Berlin Germany
4. Berlin-Brandenburg School of Regenerative Therapies; Charité University Hospital; Berlin Germany
5. Research Center of Medical Technology and Biotechnology; Bad Langensalza Germany
6. Berlin- Brandenburg Center of Regenerative Therapies; Charité University Hospital; Berlin Germany