1. Department of Neurology; National Cheng Kung University Hospital and School of Medicine; National Cheng Kung University; Tainan Taiwan
2. Department of Neurology; Chang Gung Memorial Hospital; Chang Gung University; Taoyuan City Taiwan
3. Department of Medicine and Therapeutics; Faculty of Medicine; Prince of Wales Hospital; Hong Kong Hong Kong
4. Department of Paediatrics; King Chulalongkorn Memorial Hospital; Bangkok Thailand
5. Integrated Epilepsy Research Group; Department of Medicine; Faculty of Medicine; Khon Kaen University; Khon Kaen Thailand
6. Division of Neurology; Department of Medicine; Faculty of Medicine; University of Malaya; Kuala Lumpur Malaysia
7. Eisai Singapore Pte. Ltd.; Singapore