1. Department of Neurology Royal Victoria Hospital BelfastUK
2. Ulster University Derry UK
3. National Drug Treatment Centre Dublin Ireland
4. Aberfoyle Medical Practice DerryUK
5. Medical School University of Cambridge CambridgeUK
6. Department of Ophthalmology Altnagelvin Hospital DerryUK
7. Department of Neurology Altnagelvin Hospital Derry UK