1. Department of Radiology, Belfast City Hospital, 51 Lisburn Rd, Belfast, Antrim BT9 7AB, UK.
2. Royal College of Surgeons in Ireland, Dublin, Ireland.
3. Interventional Radiology Service, Northern Hospital Radiology, Epping, Australia.
4. School of Medicine, Faculty of Health, Deakin University, Waurn Ponds, Australia.
5. Interventional Neuroradiology Service, Monash Imaging, Monash Health, Clayton, Australia.
6. Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Australia.
7. School of Information Technology and Engineering, University of Ottawa, Ottawa, ON, Canada.
8. BCE Corporate Security, Ottawa, ON, Canada.
9. The Australian National University Medical School, Garran, Australia.
10. Department of Radiology, Interventional Neuroradiology Service, Austin Health, Heidelberg, Australia.
11. Department of Radiology, Beaumont Hospital, Dublin, Ireland.
12. The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Australia.