1. Louise Jarrett is a Spasticity Management Clinical Nurse Specialist, National Hospital for Neurology and Neurosurgery, University College London Hospitals, Queen Square, London, United Kingdom.
2. Siobhan M. Leary is a Research Fellow, Institute of Neurology, Queen Square, London, United Kingdom.
3. Bernadette Porter is a Multiple Sclerosis Clinical Nurse Specialist, National Hospital for Neurology and Neurosurgery, University College London Hospitals, Queen Square, London, United Kingdom.
4. Davina Richardson is a Clinical Physiotherapy Specialist, National Hospital for Neurology and Neurosurgery, University College London Hospitals, Queen Square, London, United Kingdom.
5. Tiziana Rosso was a Visiting Research Fellow, Institute of Neurology, Queen Square, London, United Kingdom, at the time this paper was prepared. Dr. Rosso is now at Servizio di Neurologia ad indirizzo Riabilitativo, Dipartimento di Scienze Neurologiche e della Visione, Universita' degli Studi di Verona, Italy.
6. Michael Powell is a Consultant Neurosurgeon, National Hospital for Neurology and Neurosurgery, University College London Hospitals, Queen Square, London, United Kingdom.
7. Alan J. Thompson is a Professor of Clinical Neurology and Neurorehabilitation, Institute of Neurology, Queen Square, London, United Kingdom.