1. Department of NeurologyUniversity Medical Center Goettingen, Göttingen, Germany; and Paracelsus‐Elena Klinik Kassel Germany
2. Department of Biostatistics, College of Public HealthUniversity of Iowa Iowa City, Iowa USA
3. BioLegend Inc. San Diego, California USA
4. Molecular Genetics Section, Laboratory of NeurogeneticsNational Institute on Aging, National Institutes of Health Bethesda Maryland USA
5. Department of Pathology & Laboratory MedicinePerelman School of Medicine, University of Pennsylvania Philadelphia Pennsylvania USA
6. Center for Neurodegenerative Disease ResearchInstitute on Aging, Perelman School of Medicine, University of Pennsylvania Philadelphia Pennsylvania USA
7. Morris K. Udall Center of Excellence for Parkinson's Disease ResearchPerelman School of Medicine, University of Pennsylvania Philadelphia Pennsylvania USA
8. The Michael J. Fox Foundation for Parkinson's Research New York New York USA
9. Parkinson's Disease and Movement Disorders CenterNorthwestern University Feinberg School of Medicine Chicago Illinois USA
10. Neurological ServiceHospital Clinic de Barcelona Barcelona Spain
11. Department of NeurologyPhilipps University Marburg Marburg Germany
12. Department of Neurology Perelman School of MedicineUniversity of Pennsylvania Philadelphia Pennsylvania USA
13. Institute for Neurodegenerative Disorders New Haven Connecticut USA
14. University of Southern CaliforniaLaboratory of Neuro Imaging Los Angeles California USA
15. Department of NeurologyUniversity of California San Francisco San Francisco California USA
16. Clinical Trials Coordination CenterUniversity of Rochester Medical Center Rochester New York USA
17. Department of NeurologyUniversity of Pittsburgh Pittsburgh Pennsylvania USA
18. Department of NeurosciencesUniversity of California San Diego, San Diego, California USA