1. Vanderbilt University School of Medicine, Nashville, Tennessee;
2. Surgical Outcomes Center for Kids, Monroe Carell Jr. Children’s Hospital, Nashville, Tennessee;
3. Northwestern University School of Medicine, Northwestern University, Chicago, Illinois;
4. Department of Neurosurgery, University Teaching Hospital, Lusaka, Zambia;
5. Vanderbilt Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, Tennessee;
6. Department of Neurological Surgery, University of Alabama, Birmingham, Alabama;
7. Beit-CURE Children’s Hospital of Zambia, Lusaka, Zambia;
8. Departments of Neurological Surgery and
9. Orthopedic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee