Nur Wahidah Wahid1, Sheneen Meghji2, Martyn Barnes2. 1. ENT Department, Southend University Hospital NHS Foundation Trust, Westcliff-on-Sea, Essex, UK. Electronic address: nur.wahid@southend.nhs.uk. 2. ENT Department, Southend University Hospital NHS Foundation Trust, Westcliff-on-Sea, Essex, UK.