1. Animal Health and Veterinary Laboratories Agency; Lasswade Laboratory; Penicuik Midlothian UK
2. Neurobiology Division; Roslin Institute & R(D)SVS; University of Edinburgh; Roslin Midlothian UK
3. Department of Cellular Neurology; Hertie Institute for Clinical Brain Research; University of Tübingen; Tübingen Germany
4. German Centre for Neurodegenerative Diseases (DZNE); Tübingen Germany