1. Department of Otolaryngology/Head and Neck Surgery, Amsterdam UMC Vrije Universiteit Amsterdam Amsterdam The Netherlands
2. Department of Clinical genetics, Amsterdam UMC Vrije Universiteit Amsterdam Amsterdam The Netherlands
3. Department of Endocrinology, Amsterdam UMC Vrije Universiteit Amsterdam Amsterdam The Netherlands
4. Department of Surgery, Amsterdam UMC Vrije Universiteit Amsterdam Amsterdam The Netherlands
5. Department of Radiotherapy, Amsterdam UMC Vrije Universiteit Amsterdam Amsterdam The Netherlands
6. Department of Otolaryngology/Head and Neck Surgery Leiden University Medical Center Leiden The Netherlands