1. Depatment of Pathology Erasmus MCUniversity Medical Center Rotterdam Rotterdam The Netherlands
2. Department of Otorhinolaryngology and Head and Neck Surgery Erasmus MCUniversity Medical Center Rotterdam Rotterdam The Netherlands
3. Department of Oral and Maxillofacial Surgery Erasmus MCUniversity Medical Center Rotterdam Rotterdam The Netherlands
4. Department of Oral and Maxillofacial Surgery LUMCLeiden University Medical Center Rotterdam The Netherlands
5. Department of Dermatology Erasmus MCUniversity Medical Center Rotterdam Rotterdam The Netherlands