1. Department of Otolaryngology; Radboud Institute of Health Sciences; Radboud University Medical Center; Nijmegen The Netherlands
2. Department of Operating Rooms; Radboud Institute of Health Sciences; Radboud University Medical Center; Nijmegen The Netherlands
3. Department of Health Evidence; Radboud Institute of Health Sciences; Radboud University Medical Center; Nijmegen The Netherlands
4. Department of Radiology and Nuclear Medicine; Radboud University Medical Center; Nijmegen The Netherlands