1. Department of Orthopedic Surgery, Traumatology, and Plastic Surgery and University Hospital Leipzig, Leipzig, Germany.
2. Department of Anatomy and Cell Biology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.
3. Department of Cardiac Surgery, Leipzig Heart Center, University of Leipzig, Leipzig, Germany.
4. Institute of Microbiology and Epidemiology of Infectious Diseases, University Hospital Leipzig, Leipzig, Germany.