1. Neuroscience Post-Graduate Program, Federal University of Pernambuco, Recife, Brazil,
2. UNIFACISA, Campina Grande, Brazil,
3. Department of Neurosurgery, Hospital da Restauração, Recife, Brazil,
4. University of Pernambuco, Recife, Brazil,
5. Federal University of Paraiba, João Pessoa, Brazil,
6. Neurosurgical Intensive Care Unit, Hospital da Restauração, Recife, Brazil,
7. Department of Neurosurgery, Uni Atenas University Center, Paracatu, Brazil,