1. Huntington's Disease Centre Department of Neurodegenerative Disease UCL Queen Square Institute of Neurology University College London London UK
2. MRC Laboratory for Molecular Cell Biology University College London London UK
3. School of Pharmacy Liverpool John Moores University Liverpool UK
4. Evotec AG Hamburg Germany
5. Department of Clinical and Movement Neurosciences UCL Queen Square Institute of Neurology University College London London UK
6. Neurometabolic Unit National Hospital for Neurology and Neurosurgery London UK