Richard Gonzalo Párraga, MDDirector of the Neurosurgery Institute of Bolivia (INEB), Cochabamba-BoliviaNeurosurgeon at the UNIVALLE hospital, Cochabamba - Bolivia Professor of Neurology and Neurosurgery, in the private university UNIVALLECochabamba, BoliviaGuilherme Carvalhal Ribas, MDNeurosurgeon of the Israelita Hospital, Albert EinsteinFull professor, Albert Einstein Medical School, São PauloSão Paulo, BrazilSebastião Gusmão, MD, PhD Professor of NeurosurgeryFederal University of Minas GeraisMinas Gerais, BrazilJoão Paulo Almeida, MD, PhDDepartment of NeurosurgeryIU Health Indiana University IU Health Neuroscience CenterIndianapolis, IN, USAAlfredo Quiñones-Hinojosa, MD, PhDDepartment of NeurosurgeryMayo Clinic FloridaJacksonville, FL, USA