Parkinsonian Disorders

• Center for Autonomic and Peripheral Nerve Disorders, Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School — Boston, Massachusetts, United States
• Department of Neurology, University Hospital Carl Gustav Carus, Technische Universität Dresden — Dresden, Saxony, Germany
• Departement of Neurology, Charite University Medicine Berlin — Berlin, Germany
• Department of Neurology, Semmelweis University — Budapest, Hungary

• Mobile Clinical Research Site — New York, United States

• Arizona State University — Phoenix, Arizona, United States

• Università Politecnica delle Marche — Ancona, Italy

• University of Florida — Gainesville, Florida, United States

• Sağlık Bilimleri Üniversitesi — Ankara, Turkey (Türkiye)

• Vrije Universiteit Brussel — Jette, Brussels Capital, Belgium

Not specified

• Gazi University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation — Ankara, Turkey (Türkiye)

• Institute for Neurodegenerative Disorders — New Haven, Connecticut, United States