1. Medway Maritime Hospital; Ear, Nose and Throat Department; Windmill Road Gillingham Kent UK ME7 5NY
2. Newcastle upon Tyne NHS Trust; Paediatrics; 3 rd Floor, Doctors Residence, Royal Victoria Infirmary Queen Victoria Road Newcastle upon Tyne Tyne and Wear UK NE1 4LP
3. Faculty of Brain Sciences, University College London; evidENT, Ear Institute; London UK