1. Department of Oral and Maxillofacial Surgery/Plastic Surgery University Medicine Greifswald Greifswald Germany
2. ZIK Plasmatis Leibniz Institute for Plasma Science and Technology (INP) Greifswald Germany
3. Department of Microbiology and Immunology Department of Surgery Drexel University College of Medicine Philadelphia PA USA
4. Department of Dermatology University Medicine Greifswald Greifswald Germany