1. Institute of Human Genetics Polish Academy of Sciences PoznanPoland
2. Department of Clinical Pathomorphology Collegium Medicum in Bydgoszcz Nicolaus Copernicus University in Torun BydgoszczPoland
3. Department of Otolaryngology and Laryngological Oncology Poznan University of Medical Science PoznanPoland
4. Department of Tumour Pathology Greater Poland Cancer Centre Poznan Poland
5. Institute of Human Genetics Ulm University & Ulm University Medical Centre Ulm Germany
6. Insitut d'Investigacions Biomediques August Pi I Sunyer (IDIBAPS) University of Barcelona Barcelona Spain
7. Institute of Human Genetics Christian‐Albrechts‐University Kiel KielGermany
8. Department of Pathology, Hematopathology Section and Lymph Node Registry Christian‐Albrechts‐University Kiel Kiel Germany
9. Department of Tumour Pathology and Prophylaxis Poznan University of Medical Sciences & Greater Poland Cancer Centre Poznan Poland