Affiliation: | (1) Spine Surgery, Dept. of Neurosurgery, Instituto de Neurologia de Curitiba, Rua Jeremias Maciel Perretto 300 Curitiba, 81210-310 Paraná, Brazil;(2) Dept. of Neurosurgery, Instituto de Neurologia de Curitiba, Paraná, Brazil;(3) Functional and Stereotactic Surgery, Dept. of Neurosurgery, Instituto de Neurologia de Curitiba, Paraná, Brazil;(4) Dept. of Neurology, Instituto de Neurologia de Curitiba, Paraná, Brazil |