University of Pennsylvania - Department of Neurology, University of Pennsylvania - Department of Pathology and Laboratory Medicine, University of Pennsylvania - Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania - Department of Radiology, University of Pennsylvania - Department of Neurology, University of Pennsylvania - Department of Pathology and Laboratory Medicine, University of Pennsylvania - Department of Neurology, University of Pennsylvania - Department of Neurology, University of Pennsylvania - Department of Psychiatry, University of Pennsylvania - Department of Pathology and Laboratory Medicine, University of Pennsylvania - Department of Neurology, University of Pennsylvania - Department of Neurology and University of Pennsylvania - Department of Pathology and Laboratory Medicine

Columbia University Irving Medical Center, Indiana University School of Medicine, Indiana University School of Medicine, Indiana University School of Medicine, Indiana University School of Medicine, Parkinson’s Foundation, Columbia University Irving Medical Center, Cleveland Clinic, Northwestern University (Philippines) - Department of Neurology, Struthers Parkinson’s Center, Harvard University - Massachusetts General Hospital, Northwestern University (Philippines) - Department of Neurology, Harvard University - Massachusetts General Hospital, Mount Sinai Health System - Icahn School of Medicine, Cleveland Clinic, University of California, San Diego (UCSD), The Gary A. Smith PD GENEration Site University of Kansas Medical Center, St. Joseph's Hospital and Medical Center - Barrow Neurological Institute, University of Miami, University of Pennsylvania - Department of Neurology, Baylor University - Department of Neurology, Centro Cardioneuro Oftalmológico y Transplante, Unión Médica del Norte Clínica Universitaria, Columbia University - Neurology, Oregon Health & Science University, Indiana University School of Medicine, Indiana University School of Medicine, Fulgent Genetics, Illumina, Inc., National Institutes of Health, Bethesda - National Institute of Mental Health, University of Lubeck - Institute of Neurogenetics, University of Rochester, Parkinson’s Foundation, Parkinson’s Foundation, Parkinson’s Foundation and Parkinson’s Foundation