1. DERMPATH Muenchen Munich Germany
2. Institute of Pathology Ludwig‐Maximilians‐University MunichGermany
3. Pathological Institute Friedrich‐Alexander University ErlangenGermany
4. Department of Otorhinolaryngology Jena University Hospital JenaGermany
5. MVZ Hanse Histologicum Hamburg Germany
6. Department of Head and Neck/Oral Pathology Guy’s and St Thomas’ NHS Trust London UK
7. Dental School Ludwig‐Maximilians‐University Munich Germany