1. Department of Neurosurgery;
2. Department of Neurology, Vietnam National Children’s Hospital;
3. Division of Neurology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama;
4. Department of Neurosurgery, Vietnam National Children’s Hospital, Dong Da District; and
5. Department of Neurosurgery, Vietnam National Cancer Hospital, Thanh Tri District, Hanoi, Vietnam