Gyorgy Halmos, MD, PhD, Otolaryngologist, Head and Neck Surgeon, UMCG Boudewijn Plaat, MD, PhD, Otolaryngologist, Head and Neck Surgeon, UMCG Anne van den Hoek, MD, Radiation Oncologist, UMCG Harry Gubbels, consultant, Wenckebach Instituut for Education and Training, UMCG