1. Division of Neurology and Neurosurgery, School of Medicine, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, MG, Brazil
2. School of Medicine, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, MG, Brazil
3. Division of Neurosurgery, School of Medicine, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil