1 From Department of Neurosurgery, Hospital Antônio Targino (L.F.H., B.J.A.P., C.V.M.d.H., J.G.d.O.), Campina Grande-PB; Department of Medical Sciences (L.F.H.), School of Medicine, Universidade Federal de Campina Grande (UFCG), Paraíba-PB; Department of Neurosurgery, Center of Neurology and Neurosurgery Associates (CENNA) (B.J.A.P., C.V.M.d.H., J.G.d.O.), Hospital Beneficência Portuguesa de São Paulo-SP; and Department of Medical Sciences (J.G.d.O., B.J.A.P.), Division of Neurosurgery, School of Medicine, University Nove de Julho (UNINOVE), São Paulo-SP, Brazil.
2 From Department of Neurosurgery, Hospital Antônio Targino (L.F.H., B.J.A.P., C.V.M.d.H., J.G.d.O.), Campina Grande-PB; Department of Medical Sciences (L.F.H.), School of Medicine, Universidade Federal de Campina Grande (UFCG), Paraíba-PB; Department of Neurosurgery, Center of Neurology and Neurosurgery Associates (CENNA) (B.J.A.P., C.V.M.d.H., J.G.d.O.), Hospital Beneficência Portuguesa de São Paulo-SP; and Department of Medical Sciences (J.G.d.O., B.J.A.P.), Division of Neurosurgery, School of Medicine, University Nove de Julho (UNINOVE), São Paulo-SP, Brazil. benedito.jamilson@hotmail.com.