1. Neurosurgery Unit, Hospital Regional del Cusco, Cusco 08000, Peru; Professional School of Human Medicine, Universidad Andina del Cusco, Cusco 08000, Peru; Research Unit, Pan-American Student Society of Neurosurgery and Neurosciences Comité de Investigación, Cusco 08000, Peru
2. Professional School of Human Medicine, Universidad Andina del Cusco, Cusco 08000, Peru; Research Unit, Pan-American Student Society of Neurosurgery and Neurosciences Comité de Investigación, Cusco 08000, Peru
3. Research Unit, Pan-American Student Society of Neurosurgery and Neurosciences Comité de Investigación, Cusco 08000, Peru; Faculty of Medicine, Benemérita Universidad Autónoma de Puebla, Puebla, Pu 72410, Mexico; Mission: Brain BUAP Student Chapter, Puebla, Pu 72410, Mexico
4. Research Unit, Pan-American Student Society of Neurosurgery and Neurosciences Comité de Investigación, Cusco 08000, Peru; Faculty of Medical Sciences, Universidad Nacional de Asunción, Asuncion 1535, Paraguay
5. Research Unit, Pan-American Student Society of Neurosurgery and Neurosciences Comité de Investigación, Cusco 08000, Peru; Department of Neurosurgery, Hospital de Clínicas-Universidad Nacional de Asunción, San Lorenzo 2160, Paraguay
6. Research Unit, Pan-American Student Society of Neurosurgery and Neurosciences Comité de Investigación, Cusco 08000, Peru; Faculty of Medicine and Psychology, Universidad Autónoma de Baja California, Tijuana, BC 22390, Mexico