[1] Radboud Univ Nijmegen Med Ctr, Dept Otorhinolaryngol & Head & Neck Surg, Nijmegen, Netherlands
[2] Antoni Leeuwenhoek, Dept Head & Neck Oncol & Surg, Amsterdam, Netherlands
[3] Radboud Univ Nijmegen Med Ctr, Radboud Inst Hlth Sci, IQ Healthcare, Nijmegen, Netherlands
[4] Radboud Univ Nijmegen Med Ctr, Dept Otorhinolaryngol & Head & Neck Surg, Postbox 9101, NL-6500HB Nijmegen, Netherlands