1. Neurology and Neurosurgery Research Group, Pontificia Universidad Javeriana, Bogotá́ D.C., Colombia
2. Department of Neurologic Surgery, Universidad Nacional de Colombia, Neurosurgery Research Group, NeuroAxis SAS, Bogota D.C., Colombia
3. Department of Neurologic Sugery, Pontificia Universidad Javeriana, Neurosurgery Research Group, NeuroAxis SAS, Bogota D.C., Colombia
4. Department of Spinal Deformity Surgery, Instituto Nacional de Traumatología e Ortopedia Jamil Haddad, Río de Janeiro, Brazil