Affiliation: | 1. School of Medicine, University of Fortaleza, , Fortaleza, Ceará, Brazil;2. Department of Neurology, University of S?o Paulo School of Medicine, , S?o Paulo, S?o Paulo, Brazil;3. Department of Radiology, University of S?o Paulo School of Medicine, , S?o Paulo,, Brazil;4. Department of Internal Medicine, Faculty of Medicine, Federal University of Minas Gerais, , Belo Horizonte, Minas Gerais, Brazil |