Basal Ganglia Diseases

• Hospital Universitario la Princesa, Madrid, Spain — Madrid, Spain
• Autonomous University of Madrid/Nursing Department — Madrid, Spain
• Salisbury NHS Foundation Trust — Salisbury, Hampshire, United Kingdom
• University of Southampton — Southampton, Hampshire, United Kingdom

• RD Gardi Medical College — Ujjain, Madhya Pradesh, India

• China Medical University Hospital — Taichung, Taiwan

Not specified

• UCSF Surgical Movement Disorders Center — San Francisco, California, United States

• Hospital Beata María Ana — Madrid, Spain

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

• Madison, Wisconsin — Madison, Wisconsin, United States

• PPD Clinical Research Unit — Orlando, Florida, United States
• Quest Research Institute — Farmington Hills, Michigan, United States
• UZ Leuven — Leuven, Belgium
• Centre for Human Drug Research — Leiden, South Holland, Netherlands

• Assistance Publique - Hopitaux de Marseille — Marseille, France