1. Department of Neurosurgery University Medical Center at Ho Chi Minh City Ho Chi Minh City Vietnam
2. Department of Neurosurgery University of Medicine and Pharmacy at Ho Chi Minh City Ho Chi Minh City Vietnam
3. Department of Neurology University of Medicine and Pharmacy at Ho Chi Minh City Ho Chi Minh City Vietnam
4. Department of Neurology Nguyen Tri Phuong Hospital Ho Chi Minh City Vietnam
5. Department of Neurosurgery Nguyen Tri Phuong Hospital Ho Chi Minh City Vietnam
6. Department of Neurology Pham Ngoc Thach University of Medicine Ho Chi Minh City Vietnam
7. Department of Infection Disease Children Hospital 1 Ho Chi Minh City Vietnam
8. Division of PET‐CT and Cyclotron, Nuclear Medicine Department Cho Ray hospital Ho Chi Minh City Vietnam
9. Division of Neurology, Faculty of Medicine University of Malaya Kuala Lumpur Malaysia