1. Department of Neurology; St. Vincent's University Hospital; Dublin Ireland
2. University College Dublin; Dublin Ireland
3. Trinity Centre for Bioengineering; Trinity College; Dublin Ireland
4. Department of Psychiatry; University of Vermont; Burlington Vermont USA
5. Department of Neurophysiology; Beaumont Hospital; Dublin Ireland
6. Department of Neurology; Mater Misericordiae University Hospital; Dublin Ireland
7. Department of Neurology; Beaumont Hospital; Dublin Ireland
8. Department of Statistics; Trinity College; Dublin Ireland
9. Sobell Department of Motor Neuroscience and Movement Disorders; UCL Institute of Neurology, Queen Square; London United Kingdom
10. Departments of Genetics and Genomic Sciences and Neurology, Ichan School of Medicine at Mount Sinai; New York New York USA