1. Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology , London , UK
2. Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network , Chevy Chase, MD , USA
3. Department of Basic and Clinical Neuroscience, King’s College , London , UK
4. UCL Alzheimer’s Research UK, Drug Discovery Institute , London , UK
5. UCL Dementia Research Institute , London , UK
6. MRC Mitochondrial Biology Unit, University of Cambridge , Cambridge , UK
7. Francis Crick Institute , London , UK
8. NIHR Great Ormond Street Hospital Biomedical Research Centre, University College London , London , UK
9. Genetics Research Centre, Molecular and Clinical Sciences, St Georges University , London , UK
10. Department of Human Genetics, Radboudumc, Donders Institute for Brain, Cognition and Behaviour , 6500 HB Nijmegen , The Netherlands
11. Department of Cognitive Neuroscience, Radboudumc, Donders Institute for Brain, Cognition and Behaviour , 6500 HB Nijmegen , The Netherlands
12. Department of Clinical and Movement Neuroscience, UCL Queen Square Institute of Neurology , London , UK
13. Department of Neuromuscular Disease, UCL Queen Square Institute of Neurology , London , UK
14. Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health , Bethesda, MD , USA
15. Center for Alzheimer's and Related Dementias, National Institute on Aging and National Institute of Neurological Disorders and Stroke, National Institutes of Health , Bethesda, MD , USA
16. Department of Pharmacology, UCL School of Pharmacy , London , UK
17. Department of Genetics and Genomic Medicine, Great Ormond Street Institute of Child Health, University College London , London , UK
18. Department of Comparative Biomedical Sciences, Royal Veterinary College , London UK