1. Department of Neurological and Movement Sciences; University of Verona; Verona Verona Italy
2. Division of Rehabilitation Medicine, Department of Clinical Sciences; Karolinska Institute at Danderyds Hospital; Stockholm Sweden
3. Division of Rheumatology; David Geffen School of Medicine at UCLA; Los Angeles California USA
4. Department of Neurosciences; Hospital Niguarda Cà Granda; Milan Verona Italy
5. Department of Anesthesia, Pain Management and Perioperative Medicine; Dalhousie University; Halifax Nova Scotia Canada
6. Department of Neurology; Nagoya University Graduate School of Medicine; Nagoya Japan
7. Section of Neurology; Pederzoli Hospital; Peschiera del Garda Verona Italy
8. Institute of Pharmacology; University of Bern; Bern Switzerland
9. Nuffield Department of Clinical Neurosciences; University of Oxford; Oxford UK
10. Pain Research Institute; University of Liverpool, Clinical Sciences Building, University Hospital Aintree; Liverpool UK