∗Movement Disorders and Neurodegenerative Diseases Unit, Hospital Civil de Guadalajara “Fray Antonio Alcalde,” Guadalajara

†Epidemiologic and Health Services Research Unit, Mexican Institute of Social Security, Monterrey, Mexico

‡Neurology Institute, Parkinson's Disease and Movement Disorders Section, Hospital de Clínicas, University of the Oriental Republic, Montevideo, Uruguay

§Parkinson's Disease and Movement Disorders Unit, Hospital de Clínicas “José de San Martín,” University of Buenos Aires (UBA), Buenos Aires, Argentina

∥Hospital Nacional “Daniel Alcidez Carrión,” National University of San Marcos, Lima, Peru

¶Hospital de Clínicas, Neurology Department, National University of Asuncion (UNA), Asunción, Paraguay

#Neurology Department, Hospital Central de IPS, Asunción, Paraguay

∗∗Division of Neurology, Parkinson's Disease and Movement Disorders Center, University of Buenos Aires (UBA), Buenos Aires, Argentina.

Address correspondence and reprint requests to Federico Micheli, MD, PhD, Juncal 1695 Piso 5 J, 1062 Buenos Aires, Argentina; E-mail: [email protected]

Conflicts of Interest and Source of Funding: The authors have no conflicts of interest to declare.