1. Department of Neurology; St Vincent's University Hospital; Dublin Ireland
2. School of Medicine and Medical Sciences; University College Dublin; Dublin Ireland
3. Trinity Centre for Bioengineering; Dublin and School of Mathematical Sciences; Dublin Institute of Technology; Dublin Ireland
4. Beaumont Hospital; Dublin Ireland
5. Mater Misericordiae University Hospital; Dublin Ireland
6. Adelaide and Meath Hospital; Dublin Ireland
7. Royal Victoria Eye and Ear Hospital; Dublin Ireland
8. Cork University Hospital; Cork Ireland
9. Departments of Statistics; Trinity College Dublin; University of Limerick; Limerick Ireland