1. Institute of Anatomy and Experimental Morphology, University Cancer Center, University Medical Center Hamburg-Eppendorf; Hamburg Germany
2. Department of Oral and Maxillofacial Surgery; University Medical Center Hamburg-Eppendorf; Hamburg Germany
3. Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf; Hamburg Germany
4. Heinrich-Pette Institute, Leibniz Institute for Experimental Virology, Research Group Virus Genomics; Hamburg Germany
5. Department of Oral and Maxillofacial Surgery; Charité Universitätsmedizin Berlin; Germany
6. Department of Dermatology; University Medical Center Hamburg-Eppendorf; Hamburg Germany