1. Discipline of Otorhinolaryngology, Faculty of Medicine of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
2. Discipline of Anesthesiology, Faculty of Medicine of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
3. Department of Neuroscience and Sciences of Behavior, Division of Neurology, Faculty of Medicine of Ribeirão Preto, University of São Paulo, São Paulo, Brazil