[1] Univ Louisville, Dept Neurol, Div Movement Disorders, Louisville, KY 40292 USA
[2] Frazier Rehab Neurosci Inst, Movement Disorders Program, Louisville, KY USA
[3] Rush Univ, Med Ctr, Sect Parkinson Dis & Movement Disorders, Dept Neurol Sci, Chicago, IL 60612 USA
[4] Univ N Carolina, Sch Med, Dept Neurol, Chapel Hill, NC 27599 USA
[5] Univ Amsterdam, Dept Psychol, Amsterdam, Netherlands
[6] Univ Amsterdam, Acad Med Ctr, Dept Neurol, NL-1105 AZ Amsterdam, Netherlands
[7] Univ Penn, Sch Med, Dept Psychiat, Philadelphia, PA 19104 USA
[8] Univ Penn, Sch Med, Dept Neurol, Philadelphia, PA 19104 USA
[9] Philadelphia Vet Affairs Med Ctr, Parkinsons Dis Ctr, Philadelphia, PA USA
[10] Philadelphia Vet Affairs Med Ctr, Mental Illness Res Educ & Clin Ctr, Philadelphia, PA USA
[11] Mayo Clin, Mayo Alzheimers Dis Res Ctr, Rochester, MN USA
[12] Univ Gottingen, Gottingen, Germany
[13] Paracelsus Elena Klin, Kassel, Germany
[14] Mayo Clin, Dept Neurol, Parkinsons Dis & Movement Disorders Ctr, Scottsdale, AZ USA
[15] Columbia Univ, Dept Neurol, New York Presbyterian Hosp, Taub Inst Alzheimers Dis & Aging Brain,Med Ctr, New York, NY USA
[16] Univ Cambridge, Dept Clin Neurosci, Cambridge Ctr Brain Repair, Cambridge, England
[17] Karolinska Inst, Stockholm, Sweden
[18] Stavanger Univ Hosp, Ctr Age Related Med, Stavanger, Norway
[19] Univ Oslo, Akershus Univ Hosp, Oslo, Norway
[20] Univ Autonoma Barcelona, St Pau Hosp, Dept Neurol, Movement Disorders Unit, E-08193 Barcelona, Spain
[21] Univ Autonoma Barcelona, Inst Biomed Res IIB St Pau, E-08193 Barcelona, Spain
[22] Ctr Invest Biomed Red Enfermedad Neurodegenerat, Barcelona, Spain
[23] Hosp Donostia, Dept Neurol, Donostia San Sebastian, Spain
[24] BioDonostia Res Inst, Neurosci Unit, San Sebatian, Spain
[25] Basque Fdn Sci, Ikerbasque, Bilbao, Spain
[26] Newcastle Univ, Inst Hlth & Aging, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
[27] Istanbul Univ, Istanbul Fac Med, Dept Neurol, Behav Neurol & Movement Disorders Unit, Istanbul, Turkey