1. Department of Neurology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh city, Ho Chi Minh city, Vietnam
2. Department of Neurology, Children's Hospital No. 2, Ho Chi Minh city, Vietnam
3. Department of Upper Limb Surgery, Military Hospital 175, Ho Chi Minh city, Vietnam
4. Department of Medical Statistics and Informatics, Faculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh city, Ho Chi Minh city, Vietnam