1. Department of Population Health Sciences Duke University School of Medicine Durham North Carolina USA
2. Duke Clinical Research Institute Duke University School of Medicine Durham North Carolina USA
3. Clinical Trials Transformation Initiative Duke University Durham North Carolina USA
4. United States Food and Drug Administration Silver Springs Maryland USA
5. National Institutes of Health Rockville Maryland USA
6. Michael J. Fox Foundation for Parkinson's Research New York New York USA
7. Yale University New Haven Connecticut USA
8. Merck & Co., Inc. Rahway New Jersey USA