1. Department of Neurology and Neurosurgery, Montreal Neurological Institute and Alan Edwards Research Centre for Pain, McGill University, Montreal, QC, Canada
2. AstraZeneca R&D Montreal, Ville Saint-Laurent, QC, Canada
3. Institute of Biophysics, Medical University of Graz, Graz, Austria
4. Montreal Neurological Institute, 3801 University, Suite 778, H3A 2B4 Montreal, QC, Canada