1. MRC Prion Unit, Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, England
2. MRC Prion Unit, Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, England2currently with University of Michigan Medical School, Ann Arbor
3. Dementia Research Centre, Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, England
4. Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, England
5. MRC Prion Unit, Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, England5National Prion Clinic, National Hospital for Neurology and Neurosurgery, Queen Square, London, England