1. Neuro-Oncology Unit, Instituto Neurológico de Colombia, Medellín, Antioquia, Colombia
2. Facultad de Medicina, Universidad CES, Medellín, Antioquia, Colombia
3. Department of Radiology, Baylor University Medical Center at Dallas, Dallas, Texas, United States
4. Department of Pathology, Baylor University Medical Center at Dallas, Dallas, Texas, United States
5. Department of Radiation Oncology, Baylor University Medical Center at Dallas, Dallas, Texas, United States
6. Department of Neurosurgery, Baylor University Medical Center at Dallas, Dallas, Texas, United States
7. Department of Neuro-Oncology, Aurora Cancer Care, Milwaukee, Wisconsin, United States