Institution: | 1. Department of Radiotherapy, University of Göttingen, Göttingen, Germany;2. Department of Radiotherapy, University of Göttingen, and, Départment de Cancérologie, CHU Morvan, Brest, France;3. Department of Otorhinolaryngology, University of Göttingen, Göttingen, Germany;4. Department of Radiotherapy, University of Göttingen, Göttingen, Germany |