Affiliation: | 1. Department of ENT Surgery, Portsmouth Hospitals NHS Trust, , Portsmouth, UK;2. Department of Otolaryngology, University Hospital Southampton NHS Foundation Trust, , Southampton, UK;3. Department of ENT Surgery, University Hospital Southampton NHS Foundation Trust, , Southampton, UK;4. University of Southampton, , Southampton, UK;5. Nottingham Hospitals NHS Foundation Trust, , Nottingham, UK;6. Portsmouth Hospitals NHS Trust, , Portsmouth, UK |