1 Department of Neurosurgery, Duke University Health System, Durham, North Carolina, USA; Duke Global Health Institute, Durham, North Carolina, USA; Duke Global Neurosurgery and Neurology, Durham, North Carolina, USA. Electronic address: alvan.ukachukwu@duke.edu.
2 Department of Neurosurgery, Duke University Health System, Durham, North Carolina, USA; Duke Global Health Institute, Durham, North Carolina, USA; Duke Global Neurosurgery and Neurology, Durham, North Carolina, USA.
3 Department of Neurosurgery, University of Arizona, Tucson, Arizona, USA.