1. Department of General Sugery, Raigmore Hospital, Inverness, United Kingdom.
2. Department of Clinical and Interventional Radiology, Royal Victoria Hospital, Belfast, United Kingdom.
3. Department of Clinical Physiology, Raigmore Hospital, Inverness, United Kingdom.
4. Department of General Surgery, Raigmore Hospital, Inverness, United Kingdom.
5. Department of Radiology, Raigmore Hospital, Inverness, United Kingdom.