1. Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University, Innsbruck, Austria
2. Department of Plastic and Reconstructive Surgery, University Hospital Basle, Basle, Switzerland
3. Medical Outpatient Clinic, University Hospital Basle, Basle, Switzerland
4. Department of Plastic and Reconstructive Surgery, University Hospital, Lausanne, Switzerland
5. Clinic Löwencenter, Lucerne, Switzerland
6. Clinic Birshof, Münchenstein, Switzerland
7. Clinical Microbiology, Laboratory Medicine, University Hospital Basle, Basle, Switzerland
8. Crossklinik im Merian Iselin Spital, Basle, Switzerland
9. Infectious Diseases Service, Department of Medicine, University Hospital, Lausanne, Switzerland
10. Charité – University Medicine, Free and Humboldt University of Berlin, Berlin, Germany