1. Edinburgh Translational Neurosurgery, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
2. Department of Otolaryngology, University of Edinburgh, Edinburgh, UK
3. University of Edinburgh Medical School, Edinburgh, UK
4. Anatomy@Edinburgh, University of Edinburgh, Edinburgh, UK
5. Department of Neurosurgery, Ninewells Hospital, Dundee, UK
6. Princess Alexandra Eye Pavilion, Edinburgh, UK