1. Institute of Cellular Medicine, Newcastle University, c/o Falls and Syncope Service, Royal Victoria Infirmary, Newcastle upon Tyne, UK
2. Institute of Health and Society, Newcastle University, Newcastle upon Tyne, UK
3. Department of Health Psychology, Northumbria University, Newcastle upon Tyne, UK
4. Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
5. Clinical Trials Unit, Newcastle University, Newcastle upon Tyne, UK
6. Department of Clinical Psychology, Newcastle Tyne and Wear NHS Foundation Trust, Newcastle upon Tyne, UK
7. Department of Otolaryngology, Pittsburgh University, Philadelphia, PA, USA