1. Department of Orthopaedics, Trauma and Plastic Surgery, Leipzig University Medical Centre, Germany
2. Department of Otorhinolaryngology, Leipzig University Medical Centre, Leipzig, Germany
3. Institute of Medical Microbiology and Infection Epidemiology, Leipzig University Medical Centre, Leipzig, Germany
4. Institute of Pathology, Leipzig University Medical Centre, Leipzig, Germany
5. Department of Diagnostic and Interventional Radiology, Leipzig University Medical Centre, Leipzig, Germany