1. Medical School, Internal Medicine Department Pontifical University Catholic of Parana Curitiba Brazil
2. Movement Disorders Unit, Neurology Service, Internal Medicine Department HC, Federal University of Paraná Curitiba Brazil
3. Internal Medicine Department Federal University of Paraíba João Pessoa Brazil
4. Hospital Universitário Lauro Wanderley João Pessoa Brazil
5. UCL Huntington's Disease Centre, Department of Neurodegenerative Disease UCL Queen Square Institute of Neurology National Hospital for Neurology and Neurosurgery London United Kingdom