1. Department of Oral and Cranio-Maxillofacial Surgery; Heidelberg University Hospital; Heidelberg Germany
2. Molecular Diagnostics of Oncogenic Infections; German Cancer Research Center (DKFZ); Heidelberg Germany
3. Institute for Medical Biometry and Informatics; Heidelberg University Hospital; Heidelberg Germany
4. Department of Otorhinolaryngology, Head and Neck Surgery; Heidelberg University Hospital; Heidelberg Germany
5. Research Group Molecular Mechanisms of Head and Neck Tumors; German Cancer Research Center (DKFZ); Heidelberg Germany