1 Department of Neuropsychiatry, Federal University of Pernambuco, Recife, Brazil.
2 Department of Neurology, Hospital das Clínicas de Pernambuco - Empresa Brasileira de Serviços Hospitalares, Federal University of Pernambuco, Recife, Brazil.
3 Neurogenetics Unit, Neurology Department, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
4 Neurology Department, Hospital São Rafael-Rede D'Or São Luiz, Salvador, Brazil.
5 Department of Ophthalmology, Hospital das Clínicas de Pernambuco - Empresa Brasileira de Serviços Hospitalares, Federal University of Pernambuco, Recife, Brazil.
6 Department of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil.
7 Rare Disease Reference Center (Rarus) - Hospital Maria Lucinda, Recife, Brazil.
8 National Hospital for Neurology and Neurosurgery, Queen Sq, London, United Kingdom.