1. Department of Surgery in lieu of Department of Surgical Techniques, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil
2. Center of Biological and Health Sciences, University of the South of Santa Catarina (UNISUL), Tubarão, Santa Catarina, Brazil
3. Department of Neurosurgery, Center of Biological and Health Sciences, University of the South of Santa Catarina (UNISUL), Tubarão, Santa Catarina, Brazil