Jonathan M Fishman1,2,3, Laura Cullen4. 1. The Royal National Throat, Nose and Ear Hospital, University College London Hospitals NHS Foundation Trust, London, UK j.fishman@ucl.ac.uk. 2. University College London Ear Institute, London, UK. 3. The Journal of Laryngology and Otology, Cambridge University Press. 4. Heathfielde Medical Centre, London, UK.