Parkinsonism

• IRCCS San Raffaele Cassino - CTC Via G. di Biasio, 1 — Cassino, Frosinone, Italy
• University of Roma La Sapienza Department of Psychology University of Rome 00185, Rome — Roma, Italy
• University of Roma La Sapienza Department of Psychology University of Rome — Roma, Italy

• Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, Shanghai 200025 Recruiting — Shanghai, Shanghai Municipality, China

• Mayo Clinic in Rochester — Rochester, Minnesota, United States

• Mayo Clinic — Rochester, Minnesota, United States

• The Second Affiliated Hospital of Soochow University — Suzhou, Jiangsu, China

• HYGEIA Hospital, Parkinson's disease and Movement Disorders Department — Athens, Greece

• University of Miami — Miami, Florida, United States
• University at Buffalo — Buffalo, New York, United States

Not specified

• Sahlgrenska University Hospital — Gothenburg, Sweden

• Paracelsus Medical University — Salzburg, Austria
• Estonian Movement Disorders Society — Tartu, Estonia
• Philipps University Marburg Medical Center — Marburg, Germany
• University of Ioannina — Ioannina, Greece