1. Department of Medicine, Catanduva Medical School (FAMECA-UNIFIPA), Catanduva, São Paulo, Brazil.
2. Department of Medicine, Pontifical Catholic University of Goiás, Goiânia, Brazil.
3. Department of Medicine, Faculty of Medicine of ABC, Santo André, São Paulo, Brazil.
4. Department of Medicine, School of Medicine of Pontifical Catholic University of São Paulo, Sorocaba, São Paulo, Brazil.
5. Department of Neurosurgery, Santa Paula Hospital, São Paulo, Brazil.
6. Department of Pathology, DASA, São Paulo, Brazil.
7. Department of Neurology and Neurosurgery, University of Caxias do Sul, Caxias do Sul, Rio Grande do Sul, Brazil.
8. Department of Medicine, Division of Neurology, Catholic Pontifical University of São Paulo, Sorocaba, São Paulo, Brazil.