[1] Children Hosp 2, Neurol, Ho Chi Minh City, Vietnam
[2] Univ Med & Pharm, Div Pediat, Ho Chi Minh City, Vietnam
[3] Univ Hosp Geneva, Pediat Neurol Unit, Geneva, Switzerland
[4] Univ Hosp Geneva, Div Med Genet, Geneva, Switzerland
[5] Univ Hosp Geneva, EEG & Epilepsy Unit, Geneva, Switzerland